i have another suggestion too. I spent 3 hours trying to catch a yellow tang... i finally just gave up after disturbing the whole tank and stressing myself out. Then just as my lights shut off for the night cycle as i was going to bed i decided to try and get him because i read somewhere they have a hard time adjusting to big changes in lighting like day to night or night to day cycles so i stuck my net in and he pretty much swam into it...