Hi, I just set up a 20-gallon tank and got two honey gouramis. They are pretty cool little fish but are still young, small, and shy. I got them 3 days ago and they are with glowlight tetras and a bristle nose plec. The honey gourami's do come out when I feed them and they eat. What are some good things to feed these fish, and should I add more honey gourami's?