| Management number | 235216271 | Release Date | 2026/07/02 | List Price | $11.96 | Model Number | 235216271 | ||
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With the 2HR Aquarist APT-EI, 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.
Dose 5ml per 100L 3 times per week or 2ml per 100L daily.

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

100% comprehensive Macro+ Micro formula of N, P, K, Iron and Traces in our proprietary Capstone RatioTM.

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