FishProfiles.com Message Forums

"EDTA (Ethylene-Diamene-Tetra-Acetic-acid) is the first and most commonly known. This is not ideally suited for aquatic plants because it is unstable at a higher pH than 6.0 and generally aquarium conditions are between pH 6.0 and pH 8.0. This is also a cheaper chelate and so is unfortunately used to cut costs, so absorption is limited.

DTPA (Dethylene-Triamine-Penta-Acetic-acid) would be a better choice and should be more widely used because it is stable up to a pH of 7.5. This is within the aquariums conditions. "

from www.aquariumplants.co.za

I happen to have a fert with EDTA to bind the micronutrients so they becom water soluble. I happen to have a pH of about 8.0. Does this mean that my plants aren't really getting any or very little of the nutrients I put into the water? Even if I had DTPA nutrients, it seems that it would still be unsuitable for my water.

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Critical Fertilator: The Micromanager of Macronutrients

anybody?

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Critical Fertilator: The Micromanager of Macronutrients