So I have a 40 gallon saltwater aquarium. It currently has six fish in it, but one of them, the six line wrasse, apparently swam into the wave maker last night and was in there when I turned it on this morning(I turn some of the wave makers off at night so its calmer for the fish and so it's quieter when I'm trying to sleep since the tank is in my room). When I turned it on though, I didn't realize he/she was in there and they got chewed up pretty bad. I fashioned a box made from an old tupperware container and stuck it to the side of the tank and the fish is in that. The fish is breathing, but not moving much, still occasionally moving around though. My question is, apart from separating the fish from the others and probably investing in wave makers fish can't swim inside, what should I do? I'll try and get pictures later when the lights come on if the fish is still alive at that point. By the way not sure if parameters matter much here since it's not necessarily a disease or something that could be caused by poor water quality, but my ammonia and nitrite are always 0 and nitrate is usually stable around 2-5. My ph might be a bit low since sometimes the co2 in my house likes to build up, but I've opened windows to increase the ph if it was low(I'm out of ph reagent for my test kit so I have to guess based off what the co2 monitor says for now). Thanks for any input.

