I have a 15 gallon eel tank that I set up about 2 weeks ago. It has a couple of plants, some snails, and then my one 8 inch American eel. The tank is out of direct sunlight, the light is only on for ten hours maximum (to let the plants grow), and there isn't an ammonia issue either. My eel only eats once every few days and other than the snails, she's the only inhabitant. But after only a few days I started getting algae blooms. Now this in itself isn't an issue, but it's only been three days and a few small patches has literally turned into an algae carpet. It looks terrible, and I don't know how to get rid of it. I've been doing water changes and trying to clean it off, but it seems to grow back within hours. What should I do, and what's causing this? I've never had algae grow this quickly in any other tanks. Is there some sort of product I could use to get rid of it? It has to be eel-safe though (no copper, sensitive).