Got some KP rock and am pretty impressed. Found a few hitchhikers and could use some help on ID's and if they are reef safe. I've only ever put inverts in the tank that I've purchased on purpose and not as familiar with some of the stuff that might come in on this rock. Got a couple red mithrax that I'm going to put in the tank but want to check these others first. Hard to see in the first pic, but it's some type of worm with a TON of tentacle like things. Looks like a pile of detritus, but those are all the tentacles Thanks!