5 Gallon Tank. One Betta, one little frog, one snail, one tiny shrimp. I'm finding my water gets cloudy and green very quickly. I've done 50-75% water changes twice a week to try and catch up, and a couple full water changes, and after about 3 days, the water is green and the plants are slimy. The only time the tank has nice clear water, and I can see everything in the tank, is when I do a full water change, and 3-4 days afterwards. -Recently got a baster to take out un-eaten food everyday; hasn't helped much. -Recently lost one of our snails, and he was sick for a while (his shell somehow got broken) he's not in the tank anymore as of yesterday. Got a small snail in there still. -Shrimp has just been added about a week ago (Hoped he would eat some of the algae) -Live plant was added about a week ago as well, read that it might help keep the water clear, but now it's slimy already. -The tank has a blue LED light that's on for long periods (My son uses it as a night light) Could this be causing the rapid algae growth? -Our Betta (Mr.Fishy) has a strange black growth on his side below his dorsal, but not on any fins. (I'll be posting about that on another thread, as it's getting bigger) Thanks in advance!