Back in the 1970's , one of the first cichlids I ever bred. I've had them a few times since as well as the last 3 1/2 years. bred them in 10, 15, 29, 33 gal. and 4 ft., 5 ft. and 6 ft. tanks. Always in a community situation. They are an aggressive species. Ounce for ounce quite capable. SOMETIMES even quite capable against larger fishes. But IME, less capable and less demanding of space then breeding convicts, and considerably less serious then breeding salvinis. Both of these being other somewhat smaller sized cichlids that i have bred many, many times in the community tank. In fact, at times, I have had both of these cichlids (cons and sals) prevent jewels from holding territory and spawning. Auratus as well --- actually never bred jewels with these in the tank, ever. Kenyi ---not always able to stand up to these either.
Jewel and African Cichlid together
INFO ON THE JEWEL! The Jewel Cichlid originates from Africa where they live in streams and river systems with mud bottoms. This jewel cichlid has a wide range of common names with some pet stores calling them the Blue Jewel Cichlid, Green Jewel, Jewel fish, etc. with proper feeding and a suitable aquarium, they should color up nicely. They are very hardy and should tolerate a range of water conditions, but may only breed in tanks with water on the acidic side and slightly elevated tank temperature.
This Jewel Cichlid can be quite aggressive, even more so when they form pairs and start breeding. They will not tolerate other fish in the tank when this happens. A tank divider is needed if you plan on stocking them with other fish. Given their nature, a separate tank is advisable if you want to keep a pair of these beauties. Once they have babies, like other cichlids, these are great parents and will defend their fry against any and all comers.
Feeding the Jewel Cichlid should be a breeze since they will accept nearly all fish foods you give them. Give them a varied diet of frozen, live, flakes and pellets and they should reward you with great health and colors.
Again, think twice before putting a Jewel Cichlid in a tank with less aggressive fish
55 Gallon Jewel Cichlid Tank - YouTube
I have two large aquariums 150 gallons each with various kinds of cichlids and plecos. I have two red jewel cichlids they have just had babies about two weeks ago. At the same time I had a tank disaster my canister filter blew and a third of the water from one tank flooded my basement. The air pumps shorted on both tanks and the bubblers quit working. Long story short my whole aquariums were turned upside down no filter and lack of oxygen fish were stressed and I ended up with the weaker fish contracting a bacterial infection. (Fin rot)
Jewel cichlid breeding 10 gallon tank - YouTube