A couple weeks ago I added a half pound piece of live rock to my nano as an island for the mushroom I’m planning on adding. Today I noticed this really small thing that looks kind of like a polyp on the rock near a hole. Any idea what it could be? There’s also a similar looking one towards the...
I’m not sure what on the hermit crab’s shell. I’m hoping not the dreaded aiptasia…… also what are these white things appearing on the rock?
Thanks in advance for helping out a novice.