collonista snails???

[ricanreefer]

i ahve about 30 of them in my tank are they harmelss or sshould i take out

 

[AIMFish]

They are fine and if you can see about 30 I'd almost guess that you have about 60. I didn't know that any were in my tank and I decided to go in with a flashlight the other night and saw about 12, in a 10G, none of which can be found during the day. Someone was asking about them the other week in the zoanthid section thinking they were sundial snails, http://reefcentral.com/forums/showthread.php?s=&threadid=741694 this link has a little info on them, http://melevsreef.com/id/collonista.html

 

[Paintbug]

keep them. they are good grazers. if the numbers get high. you could always give them to someone in the area.