Clownfish acting weird

Okay guys I don't know what is up with my clownfish.

Saturday morning I got up and they were in their usual sleeping spot. I turned on the lights, let the dogs out, and came back to the tank. The fish were acting crazy weird. They were just kind of floating everywhere, running into the glass, laying on the sandbed, swimming sideways, got stuck to the overflow, really weird stuff. I ran some tests (I am using API, i know not the best but its what I have) and
PH is 8.2
Ammonia was reading .25 ppm but im not sure my ammonia test kit is correct. There has been differences between my test kit and the fish stores where as mine read .25 and the fish store 0.
Nitrate 20 ppm

Since there was ammonia I put some prime in the top off water and added some to the tank. I also turned the lights off, turned off one of the powerheads and added an air pump to the back of the tank in case maybe the oxygen level was low?

All the inverts and corals seem fine. I have a peppermint shrimp, emerald crab, uchin, zoas, duncan, plate, and 2 maxi/mini anemones.

When we came home Saturday night they were swimming fine again so I took off the air pump but still left the one powerhead off.

Sunday they were fine, everything was normal, they were eating and swimming fine.

Now this morning they are acting weird again. Just kind of floating around and bumping into stuff.

Anybody have any suggestions? are they just being silly or does something sound wrong?

 

Sounds like your culprit is probably ammonia related. Or if your tank is covered it could possibly be a low oxygen situation you fixed temporarily with the air stone. Thats where I would start.

 

As posted above I would start with increasing the O2 at night.

Also clowns can act this way if woken up suddenly. I know I bounce off the wall if someone turns on the lighting in the middle of a heavy sleep.