New and 1st tank setup.. There is something poking for my rock
Firstly hello people,
I got a 1st marine tank and just got my live rock, sand and a few hermits and a few snails init but I have got something keep pokeing out of my rock and when I look it pops back in again.
Its a little black thing like a feather duster worm, I have tried to get a photo but its to quick and I cant find anything like it on google. All I see it the feather dutster type head pop out but it curls right back to touch the rock, A bit like the dome spray head for a pond.
Any help would be great as I dont know what to do about it.