Little white starfish

[SFMMcoasters]

I've got a crazy infestation of these little white (what look like) startfish. They are only on the front glass of the aquarium. I dont know how they could've gotten there as the tank is brand new and has no starfish, maybe they were hitch-hikers? I can't get a picture because they are too small. I think ive seen some people with a thread with the same type of things, is this bad?

[drummereef]

Possibly an asterina star. Some can be predetory towards acros.

http://www.melevsreef.com/pics/0105/astrina.jpg

[AquaReeferMan]

Most likely asternias. Mine were bad. Ate up all my coralline and were irritating my zoanthids. Common hitchhiker. Some are good, some are bad

http://i42.photobucket.com/albums/e349/aquareeferman/New%20Reef/astar.jpg

[corals b 4 bills]

for three weeks straight I've been picking them out of my tank I get about ten a day, now about one. If you don't keep these guys in check they will breed out of control IMO. I saw a guys tank out here for sale maybe three hundred gallons that got out of hand with these little guys I swear there was one per inch on the glass, I had to bail. some people think there just scavengers but I don't want to take a chance of not being able to control the little buggers.

[AquaReeferMan]

Yeah thats what happened in my tank. They were everywhere I looked. I got a pair of Harlequins to clean them up. Been about 3 months and I still see a couple here and there.