Aphyosemion
Most adult Aphyosemion are
about 1 1/4 to 2 inches in length. Males are usually tolerant of other males
when raised together but best kept in pairs unless cover is available. Eggs
take 2 to 4 weeks to hatch. A 2 to 5 galon tank is a good size for a single
pair for breeding. Most are floating mop spawners although almost any Killie
will use substrate occasionally.