username

If a mollies are classified as saltwater, what marine fish would be compatable with them? Well I do know that there are fish that are large enough to eat them like eels, groupers and lionfish.

bhcaaron

Could it have come along for the ride in the live rock or substrate, if you have any? Maybe it just gew up enough to be noticeable.

Mike

Mollies can tolerate full saltwater if slowly acclimated to it. I don't think it came in on the live rock.

♥ashley♥

mollys are classified as brackish fish, which is a 1/2 fresh water and 1/2 salt water. that's what they do well with. I'm not sure about salt water.