I've had several 6 lines but due to a variety of life circumstances, we've moved a lot and really never had the same tank for more than a year or so. Currently, I have one in my 32 Biocube with a YCG and a tiny Tomini tang (Tang police, please stay home, he's good for now). So far, no issues. However, I also structured the rock in my tank so I can take it all out if need be to capture him, or any other fish, knowing things change. One of the many benefits of the small tank