Get 15% Off Your Order
When You Enter “TFCG” At Check Out

Max Plant Growth
The 2HR Aquarist Estimative Index

Designed to exceed the maximum estimate of plant-growth requirements, the famous nutrient dosing approach pioneered by Tom Barr is now available in a ready-to-use concentrate that removes the guesswork from trying to recreate this powerful and sometimes elusive formula.

lasso icon brag
The 2HR Aquarist Fertilizer APT Complete

Award-winning aquascapers' choice.

The all-in-one wonder. Richer Colours. Less Algae. Faster Results. 10X more potent1 that conventional fertilizers, and carefully balanced to limit algae. Unlock the true potential of your planted tank today!

lasso icon brag
lasso icon brag This display was created using Lasso

1Buying the nutrients separately easily add up to $75+. A 500ml bottle of APT costs $24.99

2100% comprehensive Macro+ Micro formula of N, P, K, Iron and Traces in our proprietary Capstone RatioTM.

3Try it for 100 days. If it doesn’t work, get a full refund. We are aquarists too and want the best for you.