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2Hr APTe Estimative Index 500ML – Refill
$24.35
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.
An overview of the EI methodology can be found here.
Dose 5ml per 100L 3 times per week or 2ml per 100L daily.
FAQ here.
Standard Pack comes with a calibrated pump.
300ml. Lasts ~3mths for a 150L tank.
1 in stock
