Thanks. He's a CT and my second. I couldn't believe he made a bubble nest so soon after I bought him but he hasn't flared at me yet. Dempsey died a couple of weeks ago because I didn't know I was overfeeding the greedy little thing. I have learned lots on this forum and I thank all of you. I just made one of those soda bottle buffers for the filter flow and it calmed the tank right down. They are just like little puppies, exploring everything, especially something new like the buffer. He swam right up to it, checking it out. Even with the Whisper 10 set on the lowest flow it looked like Niagra Falls in there and I really wanted the filter. That buffer is a wonderful idea!