Bought two angels and they just pick a corner of the tank, stick their noses in it and stay there for an hour until they swim to the other end of the tank and stick their noses in a corner at that end of the tank, then repeat. Why do dey do dat?
I wondered if additional fish would put them at ease. But, since these are the first fish in the tank, I didn't want to introduce a lot of fish at the same time.