Another fish to consider in an aquaponics system is ornamental fish for the pet trade. Besides Koi, African Cichlids are in high demand. They grow to market size in 6 months and reproduce furiously.

Most can handle colder water than tilapia, but won't grow unless the water is in the 70's and need high 70's to reproduce.

Here are a few shots of the ones I'm breeding:








These are also suitable for livingroom & apartment setups as the fish only get to be 4"-5".