protein skimmer

wayne

Elite Fish
Oct 22, 2002
4,077
3
0
#7
Can be made to work, but incredibly hard to maintain. They are sold for koi ponds. Saltwater is much 'stickier' than fresh so the bubbles hold together better.
If it's producing black smelly frothy muk it's working. If not, it's not. It pulls dissolved organics out of the water before they start decomposing to ammonia by sticking them to air bubbles.