All my parameters in my tank are 0 (ammo, nitrite and nitrate) and I'm constantly scrubbing diatoms and whatnot off my glass AND I have a cyano
problem n I never have mini cycle..
Conchs are reef safe, I have one.. although I haven't seen him in a few days. He likes to bury himself lol not sure on size.. I know they can get to a decent size but not positive on actual numbers