I have a 7.5 gallon cube with frags,it did have one clown fish but he's now in my DT. I left all the frags in the cube after I took the clown out and they grew a lot of green algae I've cleaned most of it but their is still a lot on some of the frag plugs and a little on the rocks. I don't have a clean up crew and the only water movement comes from the hang on filter I've been doing a lot of water changes and it seems to of got better I want to put all the frags in the display tank and not have 2 tanks running but I'm worried that the green algae will spread to the DT should I put them in? I really wasn't to concerned until I look in the tank tonight and seen something moving in the corner it was a reddish worm I took him out and when I looked closer I found more little red worms it's a bare bottom tank with 2-3 pieces of rock HELP what are they are they in the rocks how do I get rid of them??