Community Cichlid?

I have never kept Cichlids before, but am interested in trying one in my community tank. I'm very interested in how intelligent they are, and how beautiful their coloring is.

Are there any Cichlids that would stay within the 1 to 3 inch range, that are peaceful enough to keep with Corydoras Catfish, Bristlenose Pleco, various small Tetras, Rasboras, and a Honey Gourami? I'm particularly worried about them being aggressive toward the other bottom dwellers or fin nipping, and want to avoid species that would do that.

The pH is 6.4, and the hardness is 8 degrees, and it has to stay that way because of the Cardinal Tetras I have. The temperature is 75 degrees, and I can't go much higher because I have Panda Corycats, which don't tolerate warm temperatures well. I'm thinking that the temperature would probably rule out German Blue Rams, correct? Are there any other peaceful ones that can handle 75-77 degrees alright?

The aquarium only has fake plants, so it won't matter if they dig or eat plants. I have a smooth sand substrate, lots of wood and caves, and lots of fake plants for shelter. The aquarium is 75 gallons.

I understand that many peaceful Cichlids become aggressive when breeding, so I was considering keeping a single specimen to avoid that. Would a Cichlid be okay by itself?

 

Bolivian Ram. Iit would be fine by itself

 

I agree, Bolivian ram. I have 3 in a community with plecos, panda cories and honey g's and a bunch of other schooling fish. They're great.

 

I checked and they do have Bolivian Rams at the pet store I go to. However, they were very grey - hardly any color to them. That's very unusual at this store, which usually has extremely high quality fish that are very vividly colored. 90% of their fish are much brighter than a typical pet store's.

Would the Bolivian Ram color up if I got one? Or are they mostly grey fish in general? They still had the red borders to their fins, but only a very tiny hint of yellow, and otherwise were grey with black markings. I like their body shape and their large eyes, but I kind've wanted at least a little more color, like the pictures I've been seeing of them online. I understand they are timid fish, would plenty of caves and dither fish color them up more?

 

Also, I'm interested in some fish I saw called Apistogramma agassiziI "fire red". The males in particular were gorgeous. First, could I just get 1 male of this for my community tank? I don't want them to breed, so I don't want to get a pair. And since the males were so much prettier than the female I think I would only want a male. Would A. agassiziI be more or less peaceful than the Bolivian Ram, and how would it get along with the Tetras/Rasboras/Corycats/Gourami? Would it work alright with the 6.4 pH, 8 dGH, and 75 degree temperature in the tank? Would it have any special needs? How would its personality and behavior in general contrast with the Bolivian Rams?