My tank is in crisis and I don't know how to handle it. I had 4 fish (3 damsels, 1 clown) Everyone was getting along well, and appeared very happy, then all of a sudden the damsels started hiding in the LR
. I found one dead after moving the rock around. The other two continue to hid after 48 hrs. The clown is swimming around with no noticeable changes in behavior. When I can catch a glimpse of the damsels in the rock, it looks like they are shallow breathing (mouths opening and closing quickly) Not sure if they do this all the time, I never noticed it before.
I also don't notice any change in coloration or fin characteristics in any of the fish.
This pattern of behavior is similar to what I saw when I first introduced them to the tank.
Tests for Am = 0, Nitrates = 0, Nitrites = 0, pH = ~8.1
Nothing has changed with the tank except for the addition of a SeaClone skimmer.
Do I wait and see if they come out and go back to normal? What else can I test for that might account for this change in behavior? Do I need to take apart the tank to capture the damsels and put them in a quarantine? Do I need to worry about the clown?
Help is desperately needed and appreciated!!!!!