pincushion

Soooo I was watching my tank for a little bit while I was on my computer next to it and I noticed my pincushion sea urchin expelling tiny coco puffs from the back side of him. This is definitely a silly question, but I just want to make sure he is ok and that it's normal. I literally have never...

I have a newer tank roughly 1 month old with 2 clowns, 6 snails, 1 conch, 1 cleaner shrimp, 1 hermit. All my parameters are holding nicely. I am doing weekly 10% water changes. I have some diatoms that my conch is mowing down. My question is I can start to see a little algae coming. The main...

Hi I am looking for a tuxedo urchin, or pincushion, and I am wondering if anyone has one that they do not need or want anymore that I can buy off them in the Los Angeles area. If so let me know :) Thanks I can also trade some corals with you for it.