How many?

[Majames14]

I have and 75 gal tank and I plan on adding African haps/peacock cichlids to my tank as juveniles and my main question is how many can I add?

I have a zig zag eel, and plan to add a Bristlenose Pleco another question how many Bristlenoses should I add?

My filtration is one canister with sponge on Intake (cascade 1200) and HOB Marinland emperor 400 and a 20 gal sponge filter and 2 800 GPH circulation fans!

Picture of my tank is added.

 

[King Fisher]

You need more rocks and small cave areas for the Africans.

My suggestion would be 18 Africans but you got an eel that'll grow to 3 feet long? I don't see the eel being a problem for the Africans or the other way around. There might be an issue trying to feed the eel. Africans gobble up food quickly.

 

[V227]

Looks like your tank is off to a good start. In a 4 ft. Tank, best to go with 5 or 6 all male Aulonocara / Peacocks. A few smaller Haps would be okay. The bigger ones do better in tanks of 5 ft. or more. I have absolutely no experience with eels.
Like KF noted, probably would be a good idea to increase the hardscape.