What is Arctic Fish Fertiliser?
Arctic Fish is a fish-based organic liquid fertiliser designed to provide nutrients and organic matter to plants. It has an NPK analysis of 5-1-1.
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Organic Fertiliser
21 products
21 products
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Clover Chicken Manure Pellets – Natural Nutrition for Strong, Healthy Growth
Feed your plants the organic way with Clover Chicken Manure Pellets – a nutrient-rich, slow-release fertiliser that helps build healthier soil and supports vigorous growth across your garden. Ideal for vegetables, flowers, lawns, fruit trees and more, these all-natural pellets offer a gentle, balanced feed that’s safe, sustainable and easy to use.
With a typical NPK analysis of 4.3-2.4-3.8, Clover Chicken Manure Pellets deliver key macronutrients your plants need for strong roots, leafy growth and colourful blooms:
Nitrogen (N) 4.3% – promotes lush green foliage
Phosphorus (P₂O₅) 2.4% – supports strong root development
Potassium (K₂O) 3.8% – encourages healthy flowering and fruiting
Beyond the basics, this organic fertiliser also contains a valuable range of trace elements including calcium, magnesium, sulphur, iron, zinc, manganese and more – helping to build resilient plants and microbial-rich soil life.
- Slow-release formula for long-lasting feeding and fewer applications
- 100% organic and eco-friendly – no synthetic chemicals or harsh additives
- Pet and wildlife safe, making it ideal for family gardens and natural growers
- Improves soil structure, aeration and microbial activity
- Supplied in 7kg buckets for flexible application
Perfect for garden beds, borders, allotments, pots and lawns, Clover Chicken Manure Pellets are a natural, planet-friendly way to boost plant performance and soil health – all while reducing waste and supporting sustainable gardening practices.
Aqua Culture Natural Seaweed Plant Growth Stimulant 1L
1000
£10.00
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Aqua Culture Natural Seaweed Plant Growth Stimulant 1L
1000
£10.00
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Aqua Culture Natural Seaweed Plant Growth Stimulant – 100% Circular & Sustainable Seaweed for your plants.
Sustainably hand-collected from the Cornish shores, Aqua Culture’s seaweed fertiliser is 100% natural, perfect for all plant types.
It contains a balanced mix of over 60 core plant nutrients and a range of vital micronutrients.
Seaweed fertiliser helps promote root, shoot and soil heath whilst protecting against natural stressors such as root rot and pests.
Why growers use Aqua Culture:
- Earth Friendly – Our products are the most earth friendly on the UK market by far!
- Natural & Organic – We use 100% seaweed, no chemicals or nasties whatsoever!
- Carbon Negative – We only produce our products in the traditional way whilst only using Solar and a Local Spring for water and electric.
- 100% Circular – We are the only seaweed manufacturers that use a waste product and produce zero waste.
Most seaweed washed ashore ends up as waste. Aqua Culture gives it purpose again, responsibly collecting cast seaweed and gently processing it into pure, natural plant nutrition with nothing artificial added.
Powered by renewable energy and produced through a carbon negative, zero waste process, Aqua Culture offers a cleaner, more sustainable way to grow healthier plants without compromise.
Product details:
Pack size: 1L Units per case: 40 Formulation: 100% natural seaweed plant growth stimulant Application: Root drench, foliar feed, propagation soak and general plant feeding
BIOCORE AGRI - Hydrolysed Fish Blood & Bones 1L
1175
£11.75
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BIOCORE AGRI - Hydrolysed Fish Blood & Bones 1L
1175
£11.75
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BIOCORE AGRI - Hydrolysed Fish Blood & Bones 1L
The Hydrolysed Fish Blood & Bones 1L by BioCore Agri is a powerful, natural fertiliser designed to give home gardeners a sustainable boost in soil and plant health. This fish-based formula is rich in essential nutrients, supporting vigorous root growth, improved nutrient uptake, and thriving microbial activity in the soil.
Free from synthetic chemicals, it offers an eco-friendly way to nourish your plants, making it perfect for use in organic gardening. Whether you’re growing vegetables, flowers, or fruit crops, this liquid fertiliser delivers balanced nutrition that encourages robust growth and higher yields.
Key Benefits:
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1L liquid natural fertiliser
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Made from hydrolysed fish blood & bones
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Promotes root development & nutrient uptake
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Encourages beneficial soil microbes
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Suitable for vegetables, flowers & fruit crops
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100% natural & free from synthetic chemicals
Easy to apply and highly effective, BioCore Agri’s Hydrolysed Fish Blood & Bones helps create healthier soils and stronger plants season after season.
Dilution Rate: 1.2ml per 1 Litre
SINCLAIR Growmore 25kg (39 bags per pallet)
4200
£42.00
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SINCLAIR Growmore 25kg (39 bags per pallet)
4200
£42.00
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Sinclair Growmore 25kg
A balanced, multi-purpose granular fertiliser with equal parts nitrogen, phosphate, and potassium (NPK 7-7-7). Ideal for flowers, fruit, vegetables, trees, and shrubs. Provides long-lasting nutrition to promote strong, healthy growth.
Aqua Culture Natural Seaweed Plant Growth Stimulant 10L
6900
£69.00
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Aqua Culture Natural Seaweed Plant Growth Stimulant 10L
6900
£69.00
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Aqua Culture Natural Seaweed Plant Growth Stimulant – 100% Circular & Sustainable Seaweed for your plants.
Sustainably hand-collected from the Cornish shores, Aqua Culture’s seaweed fertiliser is 100% natural, perfect for all plant types.
It contains a balanced mix of over 60 core plant nutrients and a range of vital micronutrients.
Seaweed fertiliser helps promote root, shoot and soil heath whilst protecting against natural stressors such as root rot and pests.
Why growers use Aqua Culture:
- Earth Friendly – Our products are the most earth friendly on the UK market by far!
- Natural & Organic – We use 100% seaweed, no chemicals or nasties whatsoever!
- Carbon Negative – We only produce our products in the traditional way whilst only using Solar and a Local Spring for water and electric.
- 100% Circular – We are the only seaweed manufacturers that use a waste product and produce zero waste.
Most seaweed washed ashore ends up as waste. Aqua Culture gives it purpose again, responsibly collecting cast seaweed and gently processing it into pure, natural plant nutrition with nothing artificial added.
Powered by renewable energy and produced through a carbon negative, zero waste process, Aqua Culture offers a cleaner, more sustainable way to grow healthier plants without compromise.
Product details:
Pack size: 10L Units per case: Formulation: 100% natural seaweed plant growth stimulant Application: Root drench, foliar feed, propagation soak and general plant feeding
SINCLAIR Fish Blood and Bone 25kg (39 bags per pallet)
2860
£28.60
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SINCLAIR Fish Blood and Bone 25kg (39 bags per pallet)
2860
£28.60
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SINCLAIR Fish Blood and Bone 25kg
Sinclair Fish, Blood and Bone is a traditional, organic-based general-purpose plant food that promotes strong, healthy growth. Rich in natural nutrients with an NPK ratio of 3-9-3, it encourages robust root development, enhances flowering and fruiting, and supports overall plant vitality. It delivers consistent, reliable nutrition.
Supplied in professional pack sizes, this organic fertiliser meets the needs of growers seeking efficiency and results.
SINCLAIR Bonemeal 25kg (39 bags per pallet)
2500
£25.00
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SINCLAIR Bonemeal 25kg (39 bags per pallet)
2500
£25.00
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SINCLAIR Bonemeal 25kg
Sinclair Bonemeal is a natural, organic, slow-release fertiliser ideal for encouraging strong and healthy root development. With a high phosphorus content (NPK 3-9-0), it is especially effective when planting trees, shrubs, and herbaceous plants. It delivers consistent, reliable nutrition.
Supplied in professional pack sizes, this organic fertiliser meets the needs of growers seeking efficiency and results.
Arctic Fish Organic Fish Fertiliser 5-1-1 – 5L
4250
£42.50
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Arctic Fish Organic Fish Fertiliser 5-1-1 – 5L
4250
£42.50
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A fish-based organic liquid fertiliser with an NPK of 5-1-1, providing nitrogen-rich nutrition for healthy plant growth indoors and outdoors.
Arctic Fish Fertiliser is a concentrated liquid plant feed made from fish-derived organic matter. With an NPK ratio of 5-1-1, it provides a nitrogen-led nutrient profile that makes it particularly useful for supporting healthy vegetative growth.
Fish has a long history of use as a natural source of plant nutrition. As the organic matter in Arctic Fish breaks down within the growing medium, nutrients become available to plants while the organic material contributes to a biologically active root environment.
Suitable for a wide range of indoor and outdoor plants, Arctic Fish offers growers a straightforward way to incorporate a fish-based organic fertiliser into their regular plant feeding programme.
Why choose Arctic Fish Fertiliser?
- NPK 5-1-1 – a nitrogen-rich nutrient profile suited to supporting healthy vegetative plant growth.
- Fish-based fertiliser – supplies plant nutrition from a natural source of organic matter.
- Supports soil biology – organic matter provides a food source for microbial life as it breaks down in the growing medium.
- Indoor and outdoor use – suitable for feeding a broad range of plants in different growing environments.
- Versatile plant nutrition – suitable for plants, vegetable gardens, roses, trees and shrubs.
- 5 litre size – a practical larger-volume option for growers feeding plants regularly.
What is Arctic Fish Fertiliser suitable for?
With an NPK of 5-1-1, Arctic Fish has considerably more nitrogen than phosphorus or potassium. That makes it particularly useful during periods when plants are actively producing leaves, stems and other vegetative growth.
It can be used with a broad range of indoor and outdoor plants, including ornamental plants, vegetable gardens, roses, trees and shrubs. This versatility makes it useful for growers who want a fish-based liquid fertiliser that can be used across several different plant types.
Arctic Fish is also well suited to soil-focused growing programmes where organic matter and biological activity form an important part of the approach to plant nutrition.
How to use Arctic Fish Fertiliser
Shake the bottle thoroughly before every use. Natural separation can occur while fish fertiliser is standing in storage, so thorough mixing helps ensure the product is evenly distributed before measuring.
Dilute Arctic Fish Fertiliser with water according to the application instructions on the product label and the requirements of the plants being grown. Mix thoroughly before applying the prepared feed.
When incorporating Arctic Fish into an existing feeding programme, take the nutrients already being supplied into account rather than treating every fertiliser as an isolated addition. Its 5-1-1 analysis means Arctic Fish makes a meaningful contribution to the nitrogen supplied to the crop.
Store the container securely with the cap firmly closed and shake thoroughly again before the next application.
Arctic Fish Fertiliser specifications
| Product | Arctic Fish Fertiliser |
|---|---|
| Product type | Fish-based organic liquid fertiliser |
| Size | 5 litres |
| NPK | 5-1-1 |
| Primary nutrient | Nitrogen |
| Form | Liquid |
| Suitable for | Indoor & outdoor plants |
| Typical applications | Vegetative plant growth, general plant feeding & soil-focused growing programmes |
| Other suitable plants | Vegetable gardens, roses, trees & shrubs |
| Preparation | Shake well before use |
Arctic Fish Fertiliser FAQs
What is the NPK of Arctic Fish Fertiliser?
Arctic Fish Fertiliser has an NPK of 5-1-1, meaning nitrogen is the most prominent of the three primary plant nutrients in its analysis.
Is Arctic Fish Fertiliser good for vegetative growth?
Its nitrogen-led 5-1-1 nutrient profile makes Arctic Fish particularly useful during periods of active vegetative growth, when plants are developing leaves and stems.
Can Arctic Fish Fertiliser be used on indoor plants?
Yes. Arctic Fish is suitable for both indoor and outdoor plants, making it a versatile option for growers working across different growing environments.
Can Arctic Fish Fertiliser be used in the garden?
Yes. Arctic Fish can be used for outdoor plant feeding and is suitable for applications including vegetable gardens, roses, trees and shrubs.
Why does Arctic Fish Fertiliser need to be shaken?
Ingredient separation can occur naturally while the product is standing in storage. Shake the bottle thoroughly before use so the contents are properly mixed before measuring and diluting the fertiliser.
Does Arctic Fish Fertiliser support soil microbes?
Fish fertiliser introduces organic matter into the growing medium. As this material breaks down, it provides a food source for microbial activity within biologically active soils and growing media.
Is Arctic Fish Fertiliser a flowering booster?
Arctic Fish is better described as a general fish-based fertiliser with a nitrogen-led NPK of 5-1-1 rather than a dedicated high-phosphorus or high-potassium flowering booster.
ADVANCED NUTRIENTS Organic Grow Your Own Kit**
3975
£39.75
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ADVANCED NUTRIENTS Organic Grow Your Own Kit**
3975
£39.75
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ADVANCED NUTRIENTS OG Iguana Juice Grow 5L (4 per box)
7595
£75.95
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ADVANCED NUTRIENTS OG Iguana Juice Grow 5L (4 per box)
7595
£75.95
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ADVANCED NUTRIENTS OG Iguana Juice Grow 1L (12 per box)
1945
£19.45
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ADVANCED NUTRIENTS OG Iguana Juice Grow 1L (12 per box)
1945
£19.45
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ADVANCED NUTRIENTS OG Iguana Juice Bloom 5L (4 per box)
7595
£75.95
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ADVANCED NUTRIENTS OG Iguana Juice Bloom 5L (4 per box)
7595
£75.95
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ADVANCED NUTRIENTS OG Iguana Juice Bloom 1L (12 per box)
1945
£19.45
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ADVANCED NUTRIENTS OG Iguana Juice Bloom 1L (12 per box)
1945
£19.45
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ADVANCED NUTRIENTS - OG Organics Tasty Terpenes 5L (4 per box)
0
£0.00
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ADVANCED NUTRIENTS - OG Organics Tasty Terpenes 5L (4 per box)
0
£0.00
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ADVANCED NUTRIENTS - OG Organics Big Bud 5L (4 per box)**
9995
£99.95
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ADVANCED NUTRIENTS - OG Organics Big Bud 5L (4 per box)**
9995
£99.95
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Ecothrive Flourish – Ultra-Purified Seaweed Biostimulant for Enhanced Growth and Resilience
Ecothrive Flourish is a 100% natural, organic-approved biostimulant designed to improve plant performance across all growing systems. Suitable for use in soil, coco and hydroponics, it delivers consistent support from propagation through to flowering, helping plants perform under demanding conditions.
Derived from ultra-refined seaweed extract, Flourish is rich in bioactive compounds and phytohormones that drive growth, improve nutrient uptake and enhance plant resilience. Its clean, fully soluble formulation remains stable in reservoirs for weeks, making it ideal for modern hydroponic systems without the risk of fouling or blockages.
Flexible in application, Flourish can be used as both a root feed and a foliar spray, giving growers precise control over how and when they support their crops. It is particularly effective for high-performance, light-demanding crops where consistent growth and flower quality are critical.
Why growers use Ecothrive Flourish:
- Enhances plant resilience – improves tolerance to environmental stress.
- Boosts growth and development – supports germination, vegetative growth and flowering.
- Improves nutrient uptake – increases efficiency of nutrient absorption.
- Clean and reservoir stable – remains usable in hydro systems for extended periods.
- Dual application flexibility – suitable for root feeding and foliar spraying.
- Supports plant immunity – helps defend against pathogens naturally.
- Highly refined formulation – free from residues that cause blockages or system issues.
- Compatible across systems – works in soil, coco and hydroponics.
For growers seeking a clean, versatile biostimulant that delivers measurable improvements in plant health and performance, Ecothrive Flourish provides reliable support throughout the entire crop cycle.
Ecothrive Flourish – Ultra-Purified Seaweed Biostimulant for Enhanced Growth and Resilience
Ecothrive Flourish is a 100% natural, organic-approved biostimulant designed to improve plant performance across all growing systems. Suitable for use in soil, coco and hydroponics, it delivers consistent support from propagation through to flowering, helping plants perform under demanding conditions.
Derived from ultra-refined seaweed extract, Flourish is rich in bioactive compounds and phytohormones that drive growth, improve nutrient uptake and enhance plant resilience. Its clean, fully soluble formulation remains stable in reservoirs for weeks, making it ideal for modern hydroponic systems without the risk of fouling or blockages.
Flexible in application, Flourish can be used as both a root feed and a foliar spray, giving growers precise control over how and when they support their crops. It is particularly effective for high-performance, light-demanding crops where consistent growth and flower quality are critical.
Why growers use Ecothrive Flourish:
- Enhances plant resilience – improves tolerance to environmental stress.
- Boosts growth and development – supports germination, vegetative growth and flowering.
- Improves nutrient uptake – increases efficiency of nutrient absorption.
- Clean and reservoir stable – remains usable in hydro systems for extended periods.
- Dual application flexibility – suitable for root feeding and foliar spraying.
- Supports plant immunity – helps defend against pathogens naturally.
- Highly refined formulation – free from residues that cause blockages or system issues.
- Compatible across systems – works in soil, coco and hydroponics.
For growers seeking a clean, versatile biostimulant that delivers measurable improvements in plant health and performance, Ecothrive Flourish provides reliable support throughout the entire crop cycle.
Ecothrive Flourish – Ultra-Purified Seaweed Biostimulant for Enhanced Growth and Resilience
Ecothrive Flourish is a 100% natural, organic-approved biostimulant designed to improve plant performance across all growing systems. Suitable for use in soil, coco and hydroponics, it delivers consistent support from propagation through to flowering, helping plants perform under demanding conditions.
Derived from ultra-refined seaweed extract, Flourish is rich in bioactive compounds and phytohormones that drive growth, improve nutrient uptake and enhance plant resilience. Its clean, fully soluble formulation remains stable in reservoirs for weeks, making it ideal for modern hydroponic systems without the risk of fouling or blockages.
Flexible in application, Flourish can be used as both a root feed and a foliar spray, giving growers precise control over how and when they support their crops. It is particularly effective for high-performance, light-demanding crops where consistent growth and flower quality are critical.
Why growers use Ecothrive Flourish:
- Enhances plant resilience – improves tolerance to environmental stress.
- Boosts growth and development – supports germination, vegetative growth and flowering.
- Improves nutrient uptake – increases efficiency of nutrient absorption.
- Clean and reservoir stable – remains usable in hydro systems for extended periods.
- Dual application flexibility – suitable for root feeding and foliar spraying.
- Supports plant immunity – helps defend against pathogens naturally.
- Highly refined formulation – free from residues that cause blockages or system issues.
- Compatible across systems – works in soil, coco and hydroponics.
For growers seeking a clean, versatile biostimulant that delivers measurable improvements in plant health and performance, Ecothrive Flourish provides reliable support throughout the entire crop cycle.
Ecothrive Flourish – Ultra-Purified Seaweed Biostimulant for Enhanced Growth and Resilience
Ecothrive Flourish is a 100% natural, organic-approved biostimulant designed to improve plant performance across all growing systems. Suitable for use in soil, coco and hydroponics, it delivers consistent support from propagation through to flowering, helping plants perform under demanding conditions.
Derived from ultra-refined seaweed extract, Flourish is rich in bioactive compounds and phytohormones that drive growth, improve nutrient uptake and enhance plant resilience. Its clean, fully soluble formulation remains stable in reservoirs for weeks, making it ideal for modern hydroponic systems without the risk of fouling or blockages.
Flexible in application, Flourish can be used as both a root feed and a foliar spray, giving growers precise control over how and when they support their crops. It is particularly effective for high-performance, light-demanding crops where consistent growth and flower quality are critical.
Why growers use Ecothrive Flourish:
- Enhances plant resilience – improves tolerance to environmental stress.
- Boosts growth and development – supports germination, vegetative growth and flowering.
- Improves nutrient uptake – increases efficiency of nutrient absorption.
- Clean and reservoir stable – remains usable in hydro systems for extended periods.
- Dual application flexibility – suitable for root feeding and foliar spraying.
- Supports plant immunity – helps defend against pathogens naturally.
- Highly refined formulation – free from residues that cause blockages or system issues.
- Compatible across systems – works in soil, coco and hydroponics.
For growers seeking a clean, versatile biostimulant that delivers measurable improvements in plant health and performance, Ecothrive Flourish provides reliable support throughout the entire crop cycle.
BIOCORE AGRI - Hydrolysed Fish Blood & Bones 10L
11000
£110.00
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BIOCORE AGRI - Hydrolysed Fish Blood & Bones 10L
11000
£110.00
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BIOCORE AGRI - Hydrolysed Fish Blood & Bones 10L
The Hydrolysed Fish Blood & Bones 10L by BioCore Agri is a concentrated, professional-grade liquid fertiliser designed to support productive, sustainable farming. Formulated from natural fish blood and bone, it provides a rich source of organic nutrients that improve soil biodiversity, crop protein content, and overall yields across a wide range of crops.
Unlike synthetic inputs, this fertiliser is 100% chemical-free, making it a safe and eco-friendly choice for growers committed to reducing their environmental impact. By stimulating beneficial microbial activity in the soil, it strengthens root systems, enhances nutrient availability, and promotes healthier plant development season after season.
Key Benefits:
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Large 10L format ideal for commercial growers
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Concentrated liquid fertiliser for broadacre & horticulture
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Boosts soil biodiversity & microbial activity
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Enhances protein content & crop yields
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Chemical-free alternative to synthetic fertilisers
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Suitable for vegetables, fruit & field crops
The BioCore Agri Hydrolysed Fish Blood & Bones 10L is trusted by professional growers seeking a sustainable, high-performance fertiliser that delivers consistent results while supporting low-impact, regenerative farming practices.
Dilution Rate: 1.2ml per 1 Litre
Read our blog about Biocore Agri here!
Angus Seaweed Meal 20kg
A 100% natural product made from Ascophyllum nodosum seaweed, harvested from the Atlantic Ocean. Angus Seaweed Meal is a premium top dressing and soil conditioner that improves turf quality, enhances soil health, and boosts microbial activity. Ideal for reducing reliance on chemical fertilisers and promoting sustainable growth.
The Organic Fertiliser collection provides nutrient solutions derived from natural sources, designed to support healthy plant growth while improving soil structure and biological activity. These products are widely used in professional horticulture where long-term soil health, sustainability and responsible growing practices are key priorities.
Supplied through specialist horticultural distributors and garden wholesalers, organic fertilisers support nurseries and growers supplying both ornamental and edible crops. This range is essential for professional operations responding to increasing demand for environmentally responsible growing methods.