I love my FBT'S, but HATE the noise they make at night. It has been a problem for sometime now because I keep them in my bedroom. I can't take the whole tank out every night it's too big! What can I do, I've tried covering them up with a towel but it still doesn't mask the sound!! I wake up in the middle of the night and just want to . I don't want to just deal with it, I could but would preffer another alternative. I also need to keep them in my bedroom it would be a big hassle to move everything to another room. Help!!