HI everyone, after reading lots of posts over the last couple of months I'm finnally ready to get my rays on sunday. The tank is 7x30x24, with a 4x2x2 sump, 2 uvs and sand filter. The rays are feeding on pellets so I will carry on feeding them those but would like to add differant types of pellets and some frozen foods. My question is what brand of earthworm pellet is the best and can i feed nls ? thanks