Originally Posted by Justindew
I am dosing micros no macros though. I have yet to get my co2 tank filled once I do so I am going to start dosing macros with the EI method as I have in past tanks. I did not use any powersand. Would that have made a difference? What purpose does the powersand serve?
I asked because the osmocote is dosing macros right at the roots, where Crypts take them the most. Powersand has a lot of nutrients for the roots initially (first 3 months or so) and also ADA recommends using their root fertilizers for Crypts such as multibottom and / or ironbottom. It's no wonder they aren't growing as fast if they don't have the macros they once did. You could always put some osmocote tabs underneath your current setup. Just make sure to bury them well.