I don't think there's anything wrong here but I just want to check. I have two clowns in my QT tank. They're both feeding well and swimming well during the day. At night however, one of them seems to take refuge next to a glass thermometer and the other has taken to swimming right next to the weir comb on the opposite side of the tank, and seems to swim almost on it's side, as shown in the photo. As soon as I turn the lights on though, the two of them immediately pair back up and swim all over the sump wall. They seem to spend a lot of time facing downwards, but I'm assuming that's just where they think any threat is most likely to come from. There's no sign of disease or anything.
The tank is a Fluval Evo 13.5g, quick cycled for about 10 days with two big lumps of live rock. I'm pretty sure aeration is fine because the return pump outlet is giving plenty of surface agitation. I also have a Jecod SOW-4 on the opposite end to the return outlet - it's pointed slightly downwards and towards the front of the tank. I put it in there because I noticed food and debris accumulating on the tank bottom. I have the flow turned up to the maximum and the mode set to random, but it's a pretty small wavemaker and it doesn't feel like the fish are getting blasted with too much flow when I put my hand in there.
They were acclimated over about an hour using about a quarter cup full of water ever 5 minutes. I know clowns don't use hiding places, but there's plastic tubing in there if they want it.
Parameters:
Temp: 78 degrees
Salinity: 1.0235 (it drifted down to 1.023 between tests and I'm working to bring it back up to 1.025 gradually)
Ammonia: 0
Nitrites: 0
Nitrates: about 5ppm

The tank is a Fluval Evo 13.5g, quick cycled for about 10 days with two big lumps of live rock. I'm pretty sure aeration is fine because the return pump outlet is giving plenty of surface agitation. I also have a Jecod SOW-4 on the opposite end to the return outlet - it's pointed slightly downwards and towards the front of the tank. I put it in there because I noticed food and debris accumulating on the tank bottom. I have the flow turned up to the maximum and the mode set to random, but it's a pretty small wavemaker and it doesn't feel like the fish are getting blasted with too much flow when I put my hand in there.
They were acclimated over about an hour using about a quarter cup full of water ever 5 minutes. I know clowns don't use hiding places, but there's plastic tubing in there if they want it.
Parameters:
Temp: 78 degrees
Salinity: 1.0235 (it drifted down to 1.023 between tests and I'm working to bring it back up to 1.025 gradually)
Ammonia: 0
Nitrites: 0
Nitrates: about 5ppm



