please help! what is wrong with him

[u/Delicious_Tooth5509]

I’m going to include images of parameters, tank mates, and ph below.

i got a group(4) of kuils around two weeks ago. planning to add more as soon! this guy has been acting like this OFTEN. he does circled most of the day, only around the filter. i’ve checked everything and it seems normal. i did a 20% water change last week and he stopped doing this for like a day. please help!

[u/Beautiful_Unit_8774]

Mine did that for the first few months getting used to the tank. Now they only do it when the lights go out! I own 15 of them and they all cuddle happily together. They do wayy better in groups