Boyd Chemi-Clean 6g Treats up to 900 Gallons - Effective Chemiclean Cyanobacteria for Marine & Freshwater Aquariums, Safe for Fish, Corals & Invertebrates

Chemi clean is a reliable tool to erase cyanos out of the tank. Yes, corals do ok but yes they still feel it. I say that based on the trident reading that showed lower alk consumption, but like 15% lower. I'm happy with that. Consumption came back up fast and no corals died. I've used this product many times with success. Can't say the same about the competitors.

I use when I see the beginning of a cyno outbreak.. usually 1 treatment will knock out the problem.. if you continued cyno problems then maybe there is a different issue that needs to be addressed.. this product works .

helps remove the junk to a good degree side note: this is an old packaging pic and should be removed

Worked as promised and now I use if as a preventative measure often!

Works great! Removed a tank full of cyano in one dose. However did kill two of my orange bubble tip anenomies.

Works as advertised. No problems encountered.

It works good. Got quick

Have used this for more than 20 years. It works in every reef aquarium I have had.