10 Best Fertilizers Water Plants Aquarium in The UK

Last updated on 12/08/2025
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Best Choice
1
9.8
Exceptional
AquaDesign PLANT+ 2500ML Aquarium Plant "all in one" Complete Liquid Fertiliser
AquaDesign
AquaDesign PLANT+ 2500ML Aquarium Plant "all in one" Complete Liquid Fertiliser
Free Shipping
Why We Love It
  • Highly concentrated formula value.
  • Safe for all fish.
  • Essential nutrients for growth.
Main Highlights
  • Adds essential nutrients for healthy plant growth
  • Safe for all fish and inverts (including shrimp)
  • Suitable for all species of aquarium plants.
  • Aqua design PLANT+ comes with a 3ml pipette for dosing
  • Also available in 1000ml and 5000ml sizes
  • Dosage: 10ml per 30Lper week
  • Highly concentrated formula offers exceptional value
9.8
Exceptional
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Best Value
2
9.7
Exceptional
Easy Life Easy Carbo Plant Fertiliser, 1 Litre
EASY LIFE
Easy Life Easy Carbo Plant Fertiliser, 1 Litre
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Why We Love It
  • Essential for plant growth.
  • Easy dosage guidelines provided.
  • Perfect for planted aquariums.
Main Highlights
  • Essential for good plant growth
  • 1 ml per 50 litres, up to 2 ml per 50 litres daily
  • Aquarium heavily planted : 1 ml per 25 litres daily
9.7
Exceptional
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3
9.7
Exceptional
TNC Lite - Aquarium plant food/Aquatic fertiliser WITHOUT Nitrate and Phosphate (1000ml)
TNC
TNC Lite - Aquarium plant food/Aquatic fertiliser WITHOUT Nitrate and Phosphate (1000ml)
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Why We Love It
  • Lush growth in aquariums.
  • Safe for all inhabitants.
  • Highly concentrated and economical.
Main Highlights
  • Universal fertiliser containing iron, and other essential nutrients for lush growth in both red and green plants
  • Nitrate and Phosphate free (if you need N & P – choose 'TNC Complete')
  • Will not cause algae and is safe for shrimp, snails, other inverts and fish
  • Suitable for tropical and cold water aquariums & can be used with carbon filters
  • Economic. Concentrated formula & integrated measuring bottle - 1000ml will treat 10000 litres of tank water
9.7
Exceptional
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4
9.6
Superb
Save 6%
FZONE Root Tabs Freshwater Aquarium Plant Fertilizer 50-Count (1 Pack)
FZONE
FZONE Root Tabs Freshwater Aquarium Plant Fertilizer 50-Count (1 Pack)
6% OffFree Shipping
Why We Love It
  • Essential nutrients for thriving plants.
  • Easy application for all users.
  • Slow-release formula prevents overfeeding.
Main Highlights
  • Essential Nutrient Boost: These aquarium root fertilizer tablets are packed with nitrogen, phosphorus, and potassium, ideal for promoting the growth of lush crypts, majestic sword plants, and delicate carpeting plants.
  • Slow-Release Formula: Designed to dissolve gradually, the FZONE all-in-one root fertilizer tablets provide a 2-4 months supply of nutrients, allowing roots to naturally access the tabs. This prevents sudden changes in water chemistry and reduces the risk of overfeeding.
  • Tailored for Aquatic Environments: Specifically crafted for underwater jungles, these root fertilizer tablets efficiently target the root zone of aquatic plants, ensuring optimal nutrient uptake where it's most essential for overall plant health. This significantly minimizes the risk of nutrient runoff into the water, preventing eutrophication and contributing to a stable aquatic ecosystem.
  • Beginner-friendly: Unlike other aquarium fertilizers, this compressed root fertilizer requires no additional preparation or dissolution, saving you time and effort. It's perfect for busy aquarium enthusiasts and beginners alike. The compact packaging makes storage easy and helps keep your aquarium neat.
  • Simple Application: The tabs are easy to use and always sink. Each root fertilizer tab weighs about 0.6g and can cover a 5-6 inch area. Just bury them about an inch into the substrate, sit back, and watch your plants come to life. You'll see noticeable improvements in plant health and vibrancy.
9.6
Superb
Save 6%
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5
9.5
Superb
API LEAF ZONE Freshwater Aquarium Plant Fertilizer 473 ml Bottle
API
API LEAF ZONE Freshwater Aquarium Plant Fertilizer 473 ml Bottle
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Why We Love It
  • Promotes healthy plant growth.
  • Prevents leaf decay.
  • Nutrient-rich formulation.
Main Highlights
  • Contains one (1) API LEAF ZONE Freshwater Aquarium Plant Fertilizer 473 ml Bottle
  • Promotes strong, hardy and colourful leaves and prevents yellow, decaying leaves
  • Contains essential nutrients including chelated iron and potassium
  • Formulated for rapid absorption in freshwater aquarium plants
  • Use for weekly monitoring and when water or fish problems appear
9.5
Superb
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6
9.4
Superb
API ROOT TABS Freshwater Aquarium Plant Fertilizer 13 g 10-Count Box
API
API ROOT TABS Freshwater Aquarium Plant Fertilizer 13 g 10-Count Box
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Why We Love It
  • Enhances root strength.
  • Essential nutrients included.
  • Boosts plant growth.
Main Highlights
  • Contains one (1) API ROOT TABS Freshwater Aquarium Plant Fertilizer 13-Gram 10-Count Box
  • Promotes strong root development for lush plants in freshwater aquariums
  • Contains essential nutrients including iron, potassium and carbon
  • Helps new aquatic plants get off to a vigorous start and to keep established plants flourishing
  • Add tablets to gravel bed every month to ensure best results
9.4
Superb
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7
9.4
Superb
AquaDesign PLANT+ 500ML Aquarium Plant "all in one" Complete Liquid Fertiliser
AquaDesign
AquaDesign PLANT+ 500ML Aquarium Plant "all in one" Complete Liquid Fertiliser
Free Shipping
Why We Love It
  • Highly concentrated, exceptional value.
  • Safe for all aquatic life.
  • Essential nutrients for plant growth.
Main Highlights
  • Adds essential nutrients for healthy plant growth
  • Safe for all fish and inverts (including shrimp)
  • Suitable for all species of aquarium plants.
  • Aqua design PLANT+ comes with a 3ml pipette for dosing
  • Also available in 1000ml, 2500ml and 5000ml sizes
  • Dosage: 10ml per 30Lper week
  • Highly concentrated formula offers exceptional value
9.4
Superb
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8
9.3
Superb
TNC Complete - Liquid Aquarium Plant Food/Aquatic fertiliser (250ml)
TNC
TNC Complete - Liquid Aquarium Plant Food/Aquatic fertiliser (250ml)
Free Shipping
Why We Love It
  • Promotes lush plant growth.
  • Safe for all aquatic life.
  • Highly concentrated and economical.
Main Highlights
  • TNC Complete has ALL the nutrients required for lush, healthy growth in both red and green plants
  • Contains essential nitrate*, phosphate**, magnesium, iron and other trace elements
  • Will not cause algae and is safe for shrimp, snails, other inverts and fish
  • Ideal for high light / CO2 or Carbon supplemented aquariums - alternatively search TNC Lite
  • Economic - Concentrated formula & integrated measuring bottle - 250ml will treat 2500 litres of tank water
9.3
Superb
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9
9.3
Superb
Save 36%
Tetra PlantaMin Universal Fertiliser - liquid iron intensive fertiliser for magnificent and healthy aquatic plants in the aquarium, monthly application, 250 ml
Tetra
Tetra PlantaMin Universal Fertiliser - liquid iron intensive fertiliser for magnificent and healthy aquatic plants in the aquarium, monthly application, 250 ml
36% OffFree Shipping
Why We Love It
  • Prevents yellow, glassy leaves.
  • Ensures rich green leaves.
  • Promotes vigorous plant growth.
Main Highlights
  • Prevents sustained yellow, glassy leaves
  • Promotes the formation of chlorophyll, thus ensuring rich green leaves
  • Prevents iron and potassium deficiencies
  • Vigorous plant growth is the best algae prevention
9.3
Superb
Save 36%
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10
9.3
Superb
Fluval Plant Gro aquarium plant fertiliser, 120 ml
Fluval
Fluval Plant Gro aquarium plant fertiliser, 120 ml
Free Shipping
Why We Love It
  • Promotes vibrant aquatic life.
  • Replenishes essential nutrients.
  • Enriched with iron and vitamins.
Main Highlights
  • Promotes vigorous growth and vibrant colors
  • Replenishes essential nutrients
  • Enriched with iron and fortified with an effective source of vitamin B
  • For Freshwater use only
9.3
Superb
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