What is Atami ATA Calmag?
ATA Calmag is a fast-acting mineral supplement that provides additional calcium, magnesium and iron. It is particularly useful where irrigation water is naturally low in calcium and magnesium.
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Atami ATA Calmag 250ml - Calcium, Magnesium & Iron Plant Supplement
Please sign in to see pricing
148
£1.48
Unit price perEstimated delivery between October 26 and October 28.
Atami ATA Calmag 250ml is a professional, fast-acting calcium, magnesium and iron supplement designed to enrich water that is naturally low in these essential minerals. Particularly useful with soft, reverse-osmosis, rain and demineralised water, it can also supplement a normal mineral feeding programme where additional calcium and magnesium are required.
Calcium and magnesium are secondary plant nutrients, but both perform essential functions. Calcium is important for the formation and strength of plant cell walls, while magnesium is central to chlorophyll and the plant's ability to absorb light energy.
ATA Calmag also contains iron, giving growers a fast-acting mineral supplement that can help support calcium, magnesium and iron availability within one product.
It is particularly useful where the irrigation source contains relatively little mineral content, including reverse-osmosis water, rainwater and naturally soft water. Atami also identifies coco and hydroponic cultivation as situations where calcium and magnesium management can deserve additional attention.
ATA Calmag can be used with different substrate types and is compatible with Atami mineral feeding programmes. The general dosage is 0.1-1ml/L, allowing supplementation to be adjusted according to water quality, crop requirements and the wider nutrient programme.
Why choose Atami ATA Calmag?
- Calcium, magnesium & iron - supplies three important mineral elements in one concentrated supplement.
- Helps prevent deficiencies - particularly useful where the water or growing system provides insufficient calcium and magnesium.
- Supports stronger cell walls - calcium plays an important structural role within developing plant tissue.
- Supports chlorophyll production - magnesium is a central component of chlorophyll.
- Supports light-energy absorption - adequate magnesium is important for normal photosynthetic function.
- Supports nutrient uptake - Atami highlights improved nutrient absorption as a key benefit of ATA Calmag.
- Supports plant resilience - adequate calcium contributes to strong plant structure.
- Supports flower quality - Atami identifies improved flower quality as another benefit of the supplement.
- Fast-acting mineral formulation - designed to provide readily available supplementary nutrition.
- Ideal for soft water - particularly useful where naturally low mineral content limits calcium and magnesium supply.
- Excellent for RO water - useful for rebuilding calcium and magnesium levels after reverse-osmosis filtration.
- Suitable for rainwater - useful where collected rainwater forms part of the irrigation programme.
- Suitable for coco & hydroponics - two growing methods where calcium and magnesium management can be particularly important.
- Flexible 0.1-1ml/L dosage - supplementation can be matched to water quality and crop requirements.
- Concentrated 250ml format - capable of treating approximately 250-2,500L of water depending on dosage.
- Trade-ready case quantity - supplied in outer cases of 12 x 250ml bottles.
Extra calcium for stronger plant structure
Calcium performs an important structural role within plants and contributes to the formation and stability of cell walls.
Rapidly developing plant tissue requires a reliable calcium supply, making availability particularly important during periods of active crop development.
Atami highlights additional calcium as supporting stronger cell walls and improved plant resilience.
Calcium availability is influenced by more than the fertiliser itself. Source-water composition, substrate, irrigation strategy, root health and environmental conditions can all influence how effectively plants receive and use calcium.
Magnesium for chlorophyll & energy
Magnesium is located at the centre of the chlorophyll molecule and is therefore directly connected to the plant's ability to capture light energy.
An inadequate magnesium supply can interfere with normal chlorophyll function and overall plant development.
ATA Calmag provides additional magnesium alongside calcium, helping growers maintain adequate availability where the source water or normal feeding programme does not provide enough.
Atami summarises the relationship clearly: calcium supports stronger cell walls, while adequate magnesium supports chlorophyll production and plant energy.
Calcium & magnesium with added iron
ATA Calmag is more than a basic calcium and magnesium supplement. The formulation also includes iron.
Iron is an essential micronutrient involved in important plant processes associated with chlorophyll formation, enzyme activity and normal metabolism.
Combining calcium, magnesium and iron makes ATA Calmag particularly useful where growers want to strengthen the mineral profile of low-mineral irrigation water while maintaining a straightforward feeding programme.
Ideal for soft, RO, rain & demineralised water
ATA Calmag is particularly useful when the irrigation source naturally provides very little calcium or magnesium.
Reverse-osmosis water has most dissolved minerals removed during filtration. Rainwater can also contain very low levels of calcium and magnesium, while naturally soft mains water may provide substantially less than harder water sources.
Atami specifically recommends ATA Calmag for cultivation with soft or demineralised water.
Supplementation allows growers to account for the starting mineral profile of their irrigation water rather than assuming every water source provides the same nutritional contribution.
ATA Calmag for coco growing
Calcium and magnesium management can be particularly important in coco because the medium's cation exchange characteristics influence the behaviour of calcium, magnesium and potassium within the root zone.
Properly washed and buffered coco helps manage these interactions, but source-water mineral content and the chosen base nutrient still determine whether additional supplementation is appropriate.
Atami identifies coco as one of the growing systems where ATA Calmag can be particularly useful, especially when combined with soft, rain or reverse-osmosis water.
Growers should consider the calcium and magnesium already supplied by their coco base nutrient before selecting the final ATA Calmag concentration.
ATA Calmag for hydroponics
Hydroponic growing gives the grower direct control over the mineral composition of the nutrient solution, making the quality of the starting water particularly important.
Where the water contains little calcium and magnesium, these elements need to be supplied through the nutrient programme.
ATA Calmag is compatible with Atami mineral feeding programmes and can be incorporated into hydroponic nutrition where additional calcium, magnesium and iron are required.
The dosage can be adjusted according to crop requirements, source water and the wider feeding programme.
How to use Atami ATA Calmag
Atami recommends 0.1-1ml of ATA Calmag per litre of water.
Use it to enrich water that is poor in calcium and magnesium or as an addition to the normal fertiliser solution.
At 0.1-1ml/L, use 1-10ml for 10L, 5-50ml for 50L, 10-100ml for 100L and 25-250ml for 250L of water.
The appropriate concentration depends on source-water mineral content, growing medium, base nutrient, crop stage and whether ATA Calmag is being used preventatively or to address an identified shortage.
Feeding programmes should be treated as guidelines and adjusted according to crop response and local growing conditions.
Preventing & correcting calcium and magnesium shortages
ATA Calmag can be used proactively where growing conditions are known to provide limited calcium and magnesium rather than waiting for a deficiency to become established.
This is particularly relevant with reverse-osmosis water, rainwater, soft water, coco and hydroponic systems.
It can also be used correctively where plant condition and feeding analysis indicate that calcium or magnesium availability is inadequate.
Visible symptoms can have several possible causes, however, including unsuitable pH, root-zone problems, nutrient antagonism and environmental stress. Calmag dosage should therefore be adjusted based on the complete growing situation.
Calmag support for intensive LED growing
Intensive LED cultivation can place substantial demand on a crop's overall nutrient programme, particularly where plants are growing rapidly under high light intensity.
Calcium and magnesium availability should be considered alongside the other macro and micronutrients rather than treated in isolation.
ATA Calmag provides an adjustable mineral supplement that can be incorporated according to crop response without requiring the grower to change the entire base nutrient programme.
Designed to complement your base nutrient
ATA Calmag is a supplement rather than a complete base fertiliser.
It provides additional calcium, magnesium and iron where required, while the normal base nutrient continues to provide the wider range of macro and micronutrients needed by the crop.
ATA Calmag carries an N 6 W/W analysis, so it also contributes nitrogen to the nutrient solution. This should be considered when building a complete feeding programme.
Growers using several mineral additives should monitor overall nutrient concentration rather than assessing each supplement in isolation.
Do you need Calmag with hard tap water?
Not every water source requires the same level of calcium and magnesium supplementation.
Hard mains water can already contain appreciable amounts of calcium and magnesium. Automatically adding the maximum Calmag concentration without considering the starting water may therefore provide more supplementation than the crop requires.
Source-water composition, base nutrient, growing medium and crop response should all be considered when selecting the appropriate dose.
ATA Calmag's broad 0.1-1ml/L application range allows supplementation to be adjusted to suit different water qualities and crop requirements.
Concentrated 250ml Calmag supplement
The 250ml format is ideal for smaller reservoirs, hobby growers, propagation areas and growers wanting to supplement low-mineral water without purchasing a larger container.
At the maximum 1ml/L rate, one 250ml bottle can supplement approximately 250 litres of water.
At 0.5ml/L it can treat approximately 500 litres, while at the minimum 0.1ml/L rate it can treat up to approximately 2,500 litres.
For trade and wholesale ordering, ATA Calmag 250ml is supplied in outer cases of 12 bottles, giving 3L of product per full case.
Atami ATA Calmag 250ml product details
| Brand | Atami |
|---|---|
| Range | ATA |
| Product | ATA Calmag |
| Product type | Calcium, magnesium & iron mineral supplement |
| Size | 250ml |
| Primary nutrients | Calcium & magnesium |
| Additional micronutrient | Iron |
| Nutrient analysis | N 6 W/W |
| Dosage | 0.1-1ml/L |
| 10L water | 1-10ml |
| 50L water | 5-50ml |
| 100L water | 10-100ml |
| Approximate treatment capacity | 250-2,500L depending on dosage |
| Suitable growing media | Soil, coco & hydroponic cultivation |
| Particularly suitable for | Soft water, reverse-osmosis water, rainwater & demineralised water |
| Crop stages | Can be used throughout the crop cycle according to plant and water requirements |
| Use with base nutrients | Yes - designed as a supplementary additive to a normal fertiliser programme |
| Outer case quantity | 12 x 250ml bottles |
Atami ATA Calmag 250ml FAQs
What is the recommended ATA Calmag dosage?
Atami recommends 0.1-1ml/L. The appropriate concentration depends on source-water quality, crop requirements, growing medium and the rest of the feeding programme.
Does ATA Calmag contain iron?
Yes. The mineral formulation supplies iron alongside calcium and magnesium.
Is ATA Calmag suitable for reverse-osmosis water?
Yes. Reverse-osmosis filtration removes most dissolved minerals, making ATA Calmag particularly useful for adding calcium and magnesium to an RO-based feeding programme.
Can ATA Calmag be used with rainwater?
Yes. Rainwater can be naturally low in calcium and magnesium, so ATA Calmag can be used where additional mineral supplementation is required.
Is ATA Calmag suitable for coco?
Yes. Calcium and magnesium management can be particularly important in coco, especially when low-mineral water is being used.
Can ATA Calmag be used in hydroponics?
Yes. ATA Calmag is compatible with mineral feeding programmes and can be used in hydroponic cultivation where additional calcium, magnesium and iron are required.
Can ATA Calmag be used in soil?
Yes. ATA Calmag can supplement soil-grown plants where additional calcium and magnesium are appropriate.
Why do plants need calcium?
Calcium contributes to the formation and strength of plant cell walls and is particularly important for actively developing plant tissue.
Why do plants need magnesium?
Magnesium is a central component of chlorophyll and therefore plays an important role in the plant's ability to absorb light energy.
Do I need ATA Calmag with hard tap water?
Not necessarily. Hard water can already contain significant calcium and magnesium, so source-water composition should be considered before deciding how much additional Calmag is required.
Is ATA Calmag a complete fertiliser?
No. ATA Calmag is a supplementary mineral additive designed to complement a normal base fertiliser rather than replace it.
How much water can Atami ATA Calmag 250ml treat?
Across the 0.1-1ml/L dosage range, a 250ml bottle can supplement approximately 250-2,500 litres of water, depending on the concentration required.
How many Atami ATA Calmag 250ml bottles are in a case?
A full outer case contains 12 x 250ml bottles, giving a total of 3L of ATA Calmag per case.
Atami ATA Calmag 250ml - Calcium, Magnesium & Iron Plant Supplement
Please sign in to see pricing
148
£1.48
Unit price perAtami ATA Calmag 250ml is a professional, fast-acting calcium, magnesium and iron supplement designed to enrich water that is naturally low in these essential minerals. Particularly useful with soft, reverse-osmosis, rain and demineralised water, it can also supplement a normal mineral feeding programme where additional calcium and magnesium are required.
Calcium and magnesium are secondary plant nutrients, but both perform essential functions. Calcium is important for the formation and strength of plant cell walls, while magnesium is central to chlorophyll and the plant's ability to absorb light energy.
ATA Calmag also contains iron, giving growers a fast-acting mineral supplement that can help support calcium, magnesium and iron availability within one product.
It is particularly useful where the irrigation source contains relatively little mineral content, including reverse-osmosis water, rainwater and naturally soft water. Atami also identifies coco and hydroponic cultivation as situations where calcium and magnesium management can deserve additional attention.
ATA Calmag can be used with different substrate types and is compatible with Atami mineral feeding programmes. The general dosage is 0.1-1ml/L, allowing supplementation to be adjusted according to water quality, crop requirements and the wider nutrient programme.
Why choose Atami ATA Calmag?
- Calcium, magnesium & iron - supplies three important mineral elements in one concentrated supplement.
- Helps prevent deficiencies - particularly useful where the water or growing system provides insufficient calcium and magnesium.
- Supports stronger cell walls - calcium plays an important structural role within developing plant tissue.
- Supports chlorophyll production - magnesium is a central component of chlorophyll.
- Supports light-energy absorption - adequate magnesium is important for normal photosynthetic function.
- Supports nutrient uptake - Atami highlights improved nutrient absorption as a key benefit of ATA Calmag.
- Supports plant resilience - adequate calcium contributes to strong plant structure.
- Supports flower quality - Atami identifies improved flower quality as another benefit of the supplement.
- Fast-acting mineral formulation - designed to provide readily available supplementary nutrition.
- Ideal for soft water - particularly useful where naturally low mineral content limits calcium and magnesium supply.
- Excellent for RO water - useful for rebuilding calcium and magnesium levels after reverse-osmosis filtration.
- Suitable for rainwater - useful where collected rainwater forms part of the irrigation programme.
- Suitable for coco & hydroponics - two growing methods where calcium and magnesium management can be particularly important.
- Flexible 0.1-1ml/L dosage - supplementation can be matched to water quality and crop requirements.
- Concentrated 250ml format - capable of treating approximately 250-2,500L of water depending on dosage.
- Trade-ready case quantity - supplied in outer cases of 12 x 250ml bottles.
Extra calcium for stronger plant structure
Calcium performs an important structural role within plants and contributes to the formation and stability of cell walls.
Rapidly developing plant tissue requires a reliable calcium supply, making availability particularly important during periods of active crop development.
Atami highlights additional calcium as supporting stronger cell walls and improved plant resilience.
Calcium availability is influenced by more than the fertiliser itself. Source-water composition, substrate, irrigation strategy, root health and environmental conditions can all influence how effectively plants receive and use calcium.
Magnesium for chlorophyll & energy
Magnesium is located at the centre of the chlorophyll molecule and is therefore directly connected to the plant's ability to capture light energy.
An inadequate magnesium supply can interfere with normal chlorophyll function and overall plant development.
ATA Calmag provides additional magnesium alongside calcium, helping growers maintain adequate availability where the source water or normal feeding programme does not provide enough.
Atami summarises the relationship clearly: calcium supports stronger cell walls, while adequate magnesium supports chlorophyll production and plant energy.
Calcium & magnesium with added iron
ATA Calmag is more than a basic calcium and magnesium supplement. The formulation also includes iron.
Iron is an essential micronutrient involved in important plant processes associated with chlorophyll formation, enzyme activity and normal metabolism.
Combining calcium, magnesium and iron makes ATA Calmag particularly useful where growers want to strengthen the mineral profile of low-mineral irrigation water while maintaining a straightforward feeding programme.
Ideal for soft, RO, rain & demineralised water
ATA Calmag is particularly useful when the irrigation source naturally provides very little calcium or magnesium.
Reverse-osmosis water has most dissolved minerals removed during filtration. Rainwater can also contain very low levels of calcium and magnesium, while naturally soft mains water may provide substantially less than harder water sources.
Atami specifically recommends ATA Calmag for cultivation with soft or demineralised water.
Supplementation allows growers to account for the starting mineral profile of their irrigation water rather than assuming every water source provides the same nutritional contribution.
ATA Calmag for coco growing
Calcium and magnesium management can be particularly important in coco because the medium's cation exchange characteristics influence the behaviour of calcium, magnesium and potassium within the root zone.
Properly washed and buffered coco helps manage these interactions, but source-water mineral content and the chosen base nutrient still determine whether additional supplementation is appropriate.
Atami identifies coco as one of the growing systems where ATA Calmag can be particularly useful, especially when combined with soft, rain or reverse-osmosis water.
Growers should consider the calcium and magnesium already supplied by their coco base nutrient before selecting the final ATA Calmag concentration.
ATA Calmag for hydroponics
Hydroponic growing gives the grower direct control over the mineral composition of the nutrient solution, making the quality of the starting water particularly important.
Where the water contains little calcium and magnesium, these elements need to be supplied through the nutrient programme.
ATA Calmag is compatible with Atami mineral feeding programmes and can be incorporated into hydroponic nutrition where additional calcium, magnesium and iron are required.
The dosage can be adjusted according to crop requirements, source water and the wider feeding programme.
How to use Atami ATA Calmag
Atami recommends 0.1-1ml of ATA Calmag per litre of water.
Use it to enrich water that is poor in calcium and magnesium or as an addition to the normal fertiliser solution.
At 0.1-1ml/L, use 1-10ml for 10L, 5-50ml for 50L, 10-100ml for 100L and 25-250ml for 250L of water.
The appropriate concentration depends on source-water mineral content, growing medium, base nutrient, crop stage and whether ATA Calmag is being used preventatively or to address an identified shortage.
Feeding programmes should be treated as guidelines and adjusted according to crop response and local growing conditions.
Preventing & correcting calcium and magnesium shortages
ATA Calmag can be used proactively where growing conditions are known to provide limited calcium and magnesium rather than waiting for a deficiency to become established.
This is particularly relevant with reverse-osmosis water, rainwater, soft water, coco and hydroponic systems.
It can also be used correctively where plant condition and feeding analysis indicate that calcium or magnesium availability is inadequate.
Visible symptoms can have several possible causes, however, including unsuitable pH, root-zone problems, nutrient antagonism and environmental stress. Calmag dosage should therefore be adjusted based on the complete growing situation.
Calmag support for intensive LED growing
Intensive LED cultivation can place substantial demand on a crop's overall nutrient programme, particularly where plants are growing rapidly under high light intensity.
Calcium and magnesium availability should be considered alongside the other macro and micronutrients rather than treated in isolation.
ATA Calmag provides an adjustable mineral supplement that can be incorporated according to crop response without requiring the grower to change the entire base nutrient programme.
Designed to complement your base nutrient
ATA Calmag is a supplement rather than a complete base fertiliser.
It provides additional calcium, magnesium and iron where required, while the normal base nutrient continues to provide the wider range of macro and micronutrients needed by the crop.
ATA Calmag carries an N 6 W/W analysis, so it also contributes nitrogen to the nutrient solution. This should be considered when building a complete feeding programme.
Growers using several mineral additives should monitor overall nutrient concentration rather than assessing each supplement in isolation.
Do you need Calmag with hard tap water?
Not every water source requires the same level of calcium and magnesium supplementation.
Hard mains water can already contain appreciable amounts of calcium and magnesium. Automatically adding the maximum Calmag concentration without considering the starting water may therefore provide more supplementation than the crop requires.
Source-water composition, base nutrient, growing medium and crop response should all be considered when selecting the appropriate dose.
ATA Calmag's broad 0.1-1ml/L application range allows supplementation to be adjusted to suit different water qualities and crop requirements.
Concentrated 250ml Calmag supplement
The 250ml format is ideal for smaller reservoirs, hobby growers, propagation areas and growers wanting to supplement low-mineral water without purchasing a larger container.
At the maximum 1ml/L rate, one 250ml bottle can supplement approximately 250 litres of water.
At 0.5ml/L it can treat approximately 500 litres, while at the minimum 0.1ml/L rate it can treat up to approximately 2,500 litres.
For trade and wholesale ordering, ATA Calmag 250ml is supplied in outer cases of 12 bottles, giving 3L of product per full case.
Atami ATA Calmag 250ml product details
| Brand | Atami |
|---|---|
| Range | ATA |
| Product | ATA Calmag |
| Product type | Calcium, magnesium & iron mineral supplement |
| Size | 250ml |
| Primary nutrients | Calcium & magnesium |
| Additional micronutrient | Iron |
| Nutrient analysis | N 6 W/W |
| Dosage | 0.1-1ml/L |
| 10L water | 1-10ml |
| 50L water | 5-50ml |
| 100L water | 10-100ml |
| Approximate treatment capacity | 250-2,500L depending on dosage |
| Suitable growing media | Soil, coco & hydroponic cultivation |
| Particularly suitable for | Soft water, reverse-osmosis water, rainwater & demineralised water |
| Crop stages | Can be used throughout the crop cycle according to plant and water requirements |
| Use with base nutrients | Yes - designed as a supplementary additive to a normal fertiliser programme |
| Outer case quantity | 12 x 250ml bottles |
Atami ATA Calmag 250ml FAQs
What is Atami ATA Calmag?
ATA Calmag is a fast-acting mineral supplement that provides additional calcium, magnesium and iron. It is particularly useful where irrigation water is naturally low in calcium and magnesium.
What is the recommended ATA Calmag dosage?
Atami recommends 0.1-1ml/L. The appropriate concentration depends on source-water quality, crop requirements, growing medium and the rest of the feeding programme.
Does ATA Calmag contain iron?
Yes. The mineral formulation supplies iron alongside calcium and magnesium.
Is ATA Calmag suitable for reverse-osmosis water?
Yes. Reverse-osmosis filtration removes most dissolved minerals, making ATA Calmag particularly useful for adding calcium and magnesium to an RO-based feeding programme.
Can ATA Calmag be used with rainwater?
Yes. Rainwater can be naturally low in calcium and magnesium, so ATA Calmag can be used where additional mineral supplementation is required.
Is ATA Calmag suitable for coco?
Yes. Calcium and magnesium management can be particularly important in coco, especially when low-mineral water is being used.
Can ATA Calmag be used in hydroponics?
Yes. ATA Calmag is compatible with mineral feeding programmes and can be used in hydroponic cultivation where additional calcium, magnesium and iron are required.
Can ATA Calmag be used in soil?
Yes. ATA Calmag can supplement soil-grown plants where additional calcium and magnesium are appropriate.
Why do plants need calcium?
Calcium contributes to the formation and strength of plant cell walls and is particularly important for actively developing plant tissue.
Why do plants need magnesium?
Magnesium is a central component of chlorophyll and therefore plays an important role in the plant's ability to absorb light energy.
Do I need ATA Calmag with hard tap water?
Not necessarily. Hard water can already contain significant calcium and magnesium, so source-water composition should be considered before deciding how much additional Calmag is required.
Is ATA Calmag a complete fertiliser?
No. ATA Calmag is a supplementary mineral additive designed to complement a normal base fertiliser rather than replace it.
How much water can Atami ATA Calmag 250ml treat?
Across the 0.1-1ml/L dosage range, a 250ml bottle can supplement approximately 250-2,500 litres of water, depending on the concentration required.
How many Atami ATA Calmag 250ml bottles are in a case?
A full outer case contains 12 x 250ml bottles, giving a total of 3L of ATA Calmag per case.
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148
£1.48
Unit price per