Hydroids

[reefified]

I have what I believe are Hydroids everywhere in my tank. They really dont seem to bother the corals or fish but they are everywhere. They started to appear about a week after I started running NP Pellets in my reactor. I have attached a photo of what they look like. Does anyone know how to get rid of these things? Thanks.




http://www.zoaid.com/index.php?module=Gallery2&g2_itemId=6194