Hi, I really need some people with similar set ups to give me some advice. lets see.. where to begin.. um.. i have a 60 gallon cube (24"x24"x24") with a 250 watt hay-light planted with 3 swords and some dwarf hair grass. I'm currently using some sea chem root tab fertilizer but would like to use this flourish with it because i want to carpet the grass.. well here is the thing.. i also have 6 discus in this tank and am very scared of an over dose. also, whats a recommended dosage with the excel when i have the root tabs in? Thanks guys for any advice you may have to offer.