invertabrate

I currently have a couple of turbo snails and small blue leg hermit crabs in my tank. Im guessing that eventually they will outgrow their shells and need replacements. I found a set of cool looking shells on amazon but I’m not sure if theyre safe for aquariums. For example it doesnt specify if...

Was chilling in front of the tank this morning and observed some spawn being released. At first I thought it was brittle stars spawning which I’ve seen them do before. When I looked closer I saw a small round critter, with antenna, and these two pink protrusions where the spawn was being...

Red Mithrax? Had reason to put some rock in the sump. Just found this crab eating a bristleworm. Worm not happy