Confused about EI method and Iron PO4 interactions.
I working with a 29 gallon aquarium, high pressure co2, and dosing dry ferts.
I dont have all test test kits so I cant test for Iron.
But when I test for PO4 on micro days, its 0.05(edit) or sometimes barely readable. Is this because of Iron interactions or because I am possibly dosing too little ?
Today(micro day), I could not read any PO4 , so I dosed 1/16th tsp kh2po4 (I'll do a water change tomorrow anyway), and plants instantly started pearling. Dont know ...
Last edited by jonathan; 10-05-2013 at 08:31 PM.
Reason: missing words