So today I went to Aquatic Warehouse. Got 3 Sapphire Damsels and a Filefish (I mention those because they're the focus of this discussion)...
So 2 of the Damsels got stuck to the side of one of powerheads within a couple hours, as did the Filefish. Back in the day - I've also had some Sailfin Tangs get stuck to the side of them as well...
I know some people say: "only fish on their way out get stuck blah blah blah" - yeah that's not the case. They were all healthy fish, swimming and singing and dancing and BAM - sucked right into the side of it. I'm assuming they were getting bullied by the other fish or exploring and not used to their surroundings or I don't know but it is absolutely NOT them being unhealthy so just forget about that.
Isn't there some sort of mesh boxes you can build around powerheads or something to create a buffer area where this can't happen?