Generally, with good C02, what's a good iron level to maintain? .35-4ppm??
(2wpg, 33ppm C02, 15gal wide, standard riverbed substrate, 25% weekly water
changes). I wish to find this out since I've heard recently that one must
fertilize micronutrients more than just once after water changes with a
higher lighted C02 system.

btw, I'm going with 100% flourite in a few weeks...I guess this will change
how much I supplement micronutrients since the flourite is rich in iron??

Thanx!!
Dave.