a decent school of boesemani rainbow fish. dont underestimate the rams or kribs. i just got a pair of kirbs, they arent overly aggressive, but they are *******s at random times. they dont chase, they just randomly nip.
kribs also come in various rarer seen forms such as:
Pelvichromis Subocellatus Matadi
Pelvichromis Taeniatus Dehane
Pelvichromis Taeniatus Klugei
Pelvichromis Taeniatus Nigerian Red
You won't wrong with a school of Cardinal tetra. If you keep it right condition it can live for 2 to 4 Years . Like my tank I always have them. What a small colorful fish.
I have 2 adult angels (unpaired), and an eclipse cat in a 37 tall.. and I feel it's overcrowded sometimes. with that being said. Gold wonder Killies or hatchet fish might be compatable. or more tetras of the same type. while rams 'n kribs are nice.. I agree it would be a hit or miss depending on the individual personalities. depending on the dimensions of your tank I would reccomend rainbows as well. they are a tough, colorful fish.