If you get 2 more keyhole cichlids, I wouldn't add anything to the tank after that. $ will be about your capacity. If you decide to stay with 2, you could get a trio of rams (1m, 2f), or, as Brookster said, a trio of many Apistogramma species. Check them out. There are many cool Apistos. Many are fairly peaceful, and would do well with your keyholes.
I just saw your other thread, that pleco may need to go..how long have you had him? Where did you get it?
Really. Why I need to get rid of him
I only had him for -l a week
I got him from a fish store
Sent from my SAMSUNG-SM-G891A using Aquarium Advice mobile app
Sorry I don't know what kind
And I know
Some get about a ft or two
I know it isn't consider an American cichlids but I might be get a male dwarf gourami
Their so colorful
I prefer a fish that would get to be about 3 or 4 inches
Attach a picture of the pleco so we can identify it, or describe it. Picture are always going to be more accurate however.
You *could* get a Gourami, they're peaceful for the most part but youd be breaking away from an American cichlid tank remember.
Youre limited with size of fish and their numbers in a tank like a 30g.