My largest one right now is actually 4" lol, extremely healthy fish. Their not going anywhere anytime soon lol. They do grow relatively slow tho. gator your 7" specimen is great. But i don't feed hardly any of my fish flakes as they don't hardly get any protein out of them. I only give my Africans flakes every week and a half to two weeks.
What i feed my EBJDs
Frozen: bloodworms, mysis shrimp, beefheart, brine shrimp, and small pieces of krill.
Live: small pieces of red wiggler worms (trout worms)
I feed them twice a day. I feed everything once a week except for bloodworms, feed those on mon and tues