Cool, glad they are working out. I may try to add a couple of the black ones at some point to see how they do. I’ve got some green algae that none of my cuc seems to want to touch. It’s not a bad outbreak, Vibrant and Nopox seem to be keeping my parameters in check but this one type of algae just won’t go all the way away. Not that I expect to have a totally algae free tank, especially with the way I feed. Thanks for the insight.Yes I think they did. Also me taking the rocks out and scrubbing. I mean they aren’t going to completely solve the problem if you don’t have stuff under control but I see them picking at the rocks all day. They are great for smaller tanks where you can’t have tangs. I think they are better in blennys plus you can have large groups if you want. Supposedly the regular black ones are suppose to be the best for algae but these ballon ones are doing well for me.