Red Turf Algae/Diadema?

[Silverfish]

Thanks for the pic Shane.

If I find an urchin here in town that may work I will probably pick it up and give it a try.

I am thinking that if I get a new MH bulb it may help with my algae problem that has just sprung up recently (Darren said he had the same thing till he changed his bulb)

Is your urchin really putting a dent in your coralline? or not too bad?

thanks