fish at the top, corals closed, whats up?
 

nitrate: 10
nitrite: 0.1
amonia: 0
ph: 8.2
temp: 28.5C
sal: 1.024

All my mushrooms closed, and my fish are at the top of the tank.

Did a 20% water change and everything went back to normal, for about an hour, then it's the same thing.

Any ideas would be much appreciated.

possible oxygen problem ??:)

+1

put a powerhead to the top to oxygenate the water and saw one of my clowns just turned over and died. :(

Temp is a little high.

The Clownfish dying could have been from the previous stress because if your parameters are correct I can't think of anything else, besides oxygen.

With a nitrite reading makes me think this is a new tank I mean within a month or so ?? If so then the answer us obvious if not wiuld suggest Mir oxygen and a double test for amonia :):)

+1 temperature too high and consequently oxygen very low.

The higher the temp the lower the oxygen.

Maybe something is dead because there should not be any nitrite in there.

Do you have a skimmer running?