pincushion urchid

I have a pincushion urchin, two actually, and one of them seems to be dying. He’s larger than our other one and he’s been dropping spines randomly since day one. He does eat and move around, but I’ve recently noticed a small hole in the very top of his shell (is shell the right word? It’s just...

I picked up this Biocube 32 last month as a slight upgrade over my previous 20 long. Life got in the way and the 20 long fell to the wayside. It was turned over to a FOWLR tank and someone else took care of the tank after I moved into my first house. Between the new job and being a first time...