low maintenance african tanganykan cichlid

Hello,

Last january I acquired a 16 inch freshwater moray eel, and 5 months
passed,
and I never saw it eating. I tried everything, from adding ghost
shrimps, worms,
bottom fish kuhli loaches, and he does not even care. Soemtimes I even
find his head and the tire track eel heads next to each other in the
hole...Thos books said eels like to eat live food, what a joke...

The other members of my tank are , a calvus, tetreacephalos, and
leleupi.

I have another tire track eel, a rope fish, and 2 inches (length of
the body)
crab. If the crab legs were included, it would span 10 inches.

Who end up eating my kuhli loach, was the crab. I think the cichlids
might have
stressed too much the loach, and the crab was fast enough to grab it.

I still keep minimal feeding of flakes or frozen shrimp to once every
2 weeks.

No water changes needed. No thermostat needed as well, since I am in
california.