So, my clownfish may or may not be sick. They are both acting fine and not showing any physical symptoms of ich, except that they, and one especially, are rubbing on rocks in the tank. My one little guy especially seems to be rubbing his belly on the rocks. It's not constant, but I've seen him do it a few times today now. Water parameters are fine, although they are due for a partial water change this weekend. Could there be a reason besides ich that would have them rubbing on rocks? I've just never noticed them doing it before, although they might. I'm just not home all the time to be watching.
Up until last week, they were the only fish in the tank, but I just added a starfish. I was told that I wouldn't need to quarantine the star before adding it, but now I see that I probably should have, and should never ever listen to the advice given by this LFS
(everything they told me about the starfish was wrong from the beginning!
) I don't know if the starfish could have brought something in from his tank at the fish store, but in any case, I now have to be careful how I treat my clowns because of the sensitive starfish's presence in the tank.
My only "spare" tank that could be used as a quarantine tank is a 5 gallon. I don't know if I should put the clowns in a hospital tank and gradually lower the salinity, if I should medicate them (and with what?), or just wait it out a little and see if they develop other symptoms? Any suggestions would be greatly appreciated!