Maxicrop?

[Tracy Langlinais]

Hello all,

Where would I add Maxicrop to my system? GB? FT? Collection tank?  Thanks. As always, your advice is valued.

[Michael Welber]

I added it to the fish tank and it didn't bother the fish at all. It turns the water black for a while, which if freaky, but causes no problem. So add it to your fish tank. I added a capful.