I turned the temperature down, but this morning the cardinal was dead. I'm going to take more tests tonight but I'm fairly certain that the levels were OK. I'll update when I get home tonight.
I didn't know that raising the temperature didn't help for SW
ich. If I had known that I wouldn't have done anything, but everything I've read about ich has never covered any differences between FW
. Now I know, I guess...
I'm not 100% sure it's ich, though. I'm going to QT the fish with white spots on it tonight and try to find out what will work to make him better. If I can, I'll get some pictures of him tonight and maybe we can try to figure out what's wrong. Raising the temperature was a preventative measure just in case it was ich.
I thought raising the temp would be safe thing to do, but that seems to be what bothered the cardinal so much. It didn't have any effect on anyone else in the tank, though... it looked like his main issue was breathing, so it makes me thing that being in the refugium caused it. Granted, there's probably no more than 7 gallons in the refugium, and it doesn't have much motion on the surface, but I assumed that wouldn't be a problem since the rest of the tank is being oxygenated just fine and all of that water was cycling through the refugium. I thought refugium water was supposed to be the highest quality of the whole system, which is one of the reasons I put him down there (the other reasons being that it would be dark most of the time, and he wouldn't be bothered by the other fish). Is there something wrong with my assumptions here?