I am new to the tropical fish hobby and I have a 30 gallon tank. I am very interested in cichlids. My setup is: I have some of artificial driftwood, a couple of plastic plants, natural color gravel with a few two inch stones in the corner. There are some areas in the tank where the driftwood and plants are that form hiding spots. I have been doing a lot of research and noticed that a a lot of cichlids need rocks in the aquarium. Will my setup be suitable for cichlids?