I purchased an orange line Chromis from Live Aquaria.com. I have had it about two weeks now and it is in the quarantine tank with other fish from the same order. The Chromis swims with its mouth open all of the time. Kind of like a Manta Ray. The other fish do not exhibit this habit. The Chromis eats flakes with the other fish and otherwise looks healthy. Has anyone ever seen this kind of thing?
