On angelfish I think best with 4 or more to start as they can pick on each other if males.
I have two both males and one picks on the other , not as much as he used too but a tad now, much older but still one will chase the other one.
In a 44 gallon hex.
Jeff
I have two both males and one picks on the other , not as much as he used too but a tad now, much older but still one will chase the other one.
In a 44 gallon hex.
Jeff