I've searched online but found mixed oppinions. I I have one to assist with hair alage removal. It is the common brown one that is hard to see when on rocks. I was going to return it when it's job is done but I'm wondering if it will eat chaeto? I have 2 systems both with chaeto in the fuges. One is a pretty dirty sump some hair algae along with other slimy nastiness. I would prefer to to keep it but realize a food source is needed and I don't want to have to directly feed it, as I have enough going on and don't need to add to my list of things to remember to do.