Can someone tell what it is

[budblaster]

Hi I was wondering if someone knew what these green and white tubes are they are about the thickness of a pencil lead. I've had my red sea max running for about 2.5 months they seem to grow very slow.88301

88302

[Amphiprion]

It is a calcareous alga called Neomeris. Normally fairly attractive, but it can reach plague proportions if you allow it. If you still want it, just keep it confined.