I’ve got four tangs, two Bellus angels and six chromis. Everyone of them go after the Nori. One full 5”” clip on one side of the tang and a half sheet on the other side Everyday. That’s to let the Bellus have access to one of them. It’s all gone in about two minutes. The Chromis clean up all the little pieces.. Fun to watch the big tangs run from one end to the other to try and control both clips.