I recently converted two of my tanks to my first saltwater aquariums (a 40 and a 120). I was given some live rock and fish and inverts from 2 tanks my friends were taking down and put everything in the 40 for the time being as the 120 wasn't ready at the time. I have a matted filefish and it's picking at the longspine blue spot. I like the fish because it swims a lot, but not sure about putting it in the 120, which has a niger trigger. Is it worth trying them together? I'm assuming it's about like putting two triggers together, but I could be wrong. The filefish is about 3 inches and the niger is about 5.
