What say you guys about adding phytohomones to a planted tank? I experimented with stuff like Superthrive years ago, but didn't really notice a difference. I just got a few samples of Seachem's Flourish Advance, so I'll be testing it for a little while. Is it worth it to use products like this? If so, is there a cheaper alternative to this Advance stuff? Should I try Superthrive again?