African cichlids with my EBJD

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There are plenty of other species that can be kept with EBJD. Big Tetras, Firemouths, maybe even XL Swordtails.
I agree, Blue Jacks are really nice looking. Post pics as things progress.

I might keep the firemouth if they do better in their permanent setup with more space and try adding some other tankmates with him after I get a better idea of what his personality is like. I'll definitely get some better pics of him as he grows.
 
I recently just got an EBJD too and he is the best looking fish I have ever had. Only ~1 inch at the moment, but I am excited to see him/her grow.

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After some research, I decided to add some African cichlids in with my brand new EBJD. I'm certain he is some hybrid and not a true EBJD but he is beautiful so I don't mind. He is currently being quarantined in my 10 gallon along with a Demasoni cichlid, firemouth, and another mixed Mumba but I am planning on returning him. My EBJD is very chill except when it comes to the firemouth and already starting to warm up to me. I am setting up their permanent aquarium right now and was told it was a 75 but recently measured it and it's only a 55 gallon. I need more ideas to stock the aquarium because three cichlids in a 55 is a recipe for disaster. I am planning on adding some small but more aggressive cichlids like the Demasoni, some electric yellow cichlids, and some bigger more passive peacocks but am worried the EBJD will turn more aggressive one day and be too aggressive for the peacocks and electric yellows. Being some form a hybrid (Looks like a regular jack Dempsey with bright blue spots) I am not sure what to expect but returning him and the Demasoni are not possible as I had to drive over an hour to get them. They are all about an inch long at the moment.
Mbuna are prone to Malawi bloat which can be caused by too much protein , so I think you might run into dietary issues since mbuna are pretty much veggie eaters and ebjd needs more protein. But if you used something like hikari excel, you might be ok. There’s some mbuna that wouldn’t be too aggressive like acei and the yellow labs. But the demosoni are too much for the ebjd in my opinion. Some types of hap would be a better choice if you’re dead set on mixing Africans with the Dempsey and fire mouth. Placidichromis milomo would be a better choice I think.

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If it's an EBJD, then something like a demasoni-- and other similarly aggressive mbuna-- are very likely too aggressive for it. When mbuna are small or new in the tank you don't necessarily see what's coming later on, after they get larger or more comfortable in the tank. Haps and peacocks with an EBJD would be hit or miss, depends on tank size and individual fish, but better odds than most mbuna. Mbuna more or less translates as "rock fish". Most mbuna are the classic crowd them to manage aggression fish. In nature many mbuna species are 'programmed' to fiercely defend their own little rock or hole in a rock. Neither this nor their temperament is a good fit for a typical EBJD.

If it's a carpintis or flowerhorn, at least as adults you're trouble is probably reversed in many cases-- mbuna, smaller, are probably in trouble, again depending on tank and individual fish.

I bred Malawi cichlids over 15 years. I found the best way to prevent bloat is:
1) Feeding-- feed less. Resist the temptation to overfeed a tank to get enough food to a single fish. Pay attention to them and keep them a little on the lean side, not too rounded in the belly. Even when you don't overfeed the tank overall, a single aggressive eater in the bunch can overfeed. Once I learned to recognize this, I'd take that fish to another tank and put it on a diet until it slimmed down.

2) Learn to recognize a bullied fish and signs of unobserved aggression and do something to remedy the aggression, whether it's removing a hyper aggressive fish or the bullied fish to another tank. Signs of a Malawi cichlid stressed or in trouble due to aggression are: fast breathing, staying in one corner or one spot, near a filter, near the surface, etc, scuffs on the body or frayed fins... and bloating. Couldn't tell you how often I've seen someone misdiagnose frayed fins due to aggression as "fin rot". Sure, it can turn into fin rot, but people often miss the original cause.
Once I figured out those two basic things I went from the occasional case of 'bloat' that seemed to go with the territory to virtually no cases of 'bloat' at all over many years.

...This assumes clean and reasonable water conditions, and not doing something stupid like an all earthworm diet...
 
If it's an EBJD, then something like a demasoni-- and other similarly aggressive mbuna-- are very likely too aggressive for it. When mbuna are small or new in the tank you don't necessarily see what's coming later on, after they get larger or more comfortable in the tank. Haps and peacocks with an EBJD would be hit or miss, depends on tank size and individual fish, but better odds than most mbuna. Mbuna more or less translates as "rock fish". Most mbuna are the classic crowd them to manage aggression fish. In nature many mbuna species are 'programmed' to fiercely defend their own little rock or hole in a rock. Neither this nor their temperament is a good fit for a typical EBJD.

If it's a carpintis or flowerhorn, at least as adults you're trouble is probably reversed in many cases-- mbuna, smaller, are probably in trouble, again depending on tank and individual fish.

I bred Malawi cichlids over 15 years. I found the best way to prevent bloat is:
1) Feeding-- feed less. Resist the temptation to overfeed a tank to get enough food to a single fish. Pay attention to them and keep them a little on the lean side, not too rounded in the belly. Even when you don't overfeed the tank overall, a single aggressive eater in the bunch can overfeed. Once I learned to recognize this, I'd take that fish to another tank and put it on a diet until it slimmed down.

2) Learn to recognize a bullied fish and signs of unobserved aggression and do something to remedy the aggression, whether it's removing a hyper aggressive fish or the bullied fish to another tank. Signs of a Malawi cichlid stressed or in trouble due to aggression are: fast breathing, staying in one corner or one spot, near a filter, near the surface, etc, scuffs on the body or frayed fins... and bloating. Couldn't tell you how often I've seen someone misdiagnose frayed fins due to aggression as "fin rot". Sure, it can turn into fin rot, but people often miss the original cause.
Once I figured out those two basic things I went from the occasional case of 'bloat' that seemed to go with the territory to virtually no cases of 'bloat' at all over many years.

...This assumes clean and reasonable water conditions, and not doing something stupid like an all earthworm diet...
Something else that helps with bloat is kensfish metronidazole flake. I feed it as a preventative measure and ( fingers crossed) haven’t had a single case of bloat since
 
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