Hi, I just relocated my 3 cichlids from a 40 gal to a 55 gal. I never had sand substrate before and its looking very good so far. I got 2 ghost shrimp and a peacock eel in there with the 3 cichlids...everyones living in harmony so far but I need advice on what all I need in the tank to make everyone happy. should I consider live plants? I have fake ones right now. should I get more "caves"? any suggestions? and also im not 100% sure what my 3rd cichlids is...im thinking its a rainbow cichlids but not 100% sure