Hi all. I won't be adding any fish to my tank for a long while, but I'd like to start making a plan and doing care research. My tank is a 20 gallon long, with a 100w heater, a Tetra Whisper 20i filter, fake plants, sand/gravel mix substrate. It will start with 6x Diamond Tetras and 1x ghost shrimp. I'd like to add another ghost shrimp and a couple of cherry shrimp.. but I was reading that the ghost shrimp will eat the cherries? I'd also like a couple of brightly colored fish. What would go well with this tank? Thanks in advance.