sac10918
Member
I dont know if its okay, but I used purple up as my tank was finishing off its cycle and before I added any corals, fish, etc. I think it may have helped too because my rock looks fantastic and has lots of purple coraline. I dont know if I would feel comfortable putting it into my tank now that it is all established and full of life, but I think I would definately use it again while curing live rock....