ClowningRob
New member
I have a couple of oscellarus clownfish in a 135 gallon set-up, the nitrates are 0ppm, the temp is 80, the density is 1.023, pH is 8.2. I've had these clowns for over 7 months now and I am noticing lately that they are scratching their heads against the sand or a nearby rock. I do not think it is ich because I have not introduced any new fish at all since they were acquired and they do not have white spots. Does anyone have any ideas what could be causing this?
