Dictyota dichotoma

[accord86]

I have this algae all over my tank which I believe to be Dictyota dichotoma (Thanks Paintbug) or some other type of Dictyota sp. It has grown very rapidly since I've upgraded lighting.

I can't figure out what it's thriving on besides the bright lighting. As far as I know, PO3 and NO3 are under control. It seems nearly impossible to prune all of it out of my tank, and it grows back very rapidly. Any ideas of herbivores that might feast on this?

 

[honeybee]

Yes it is Dictyota and it does well in low nutrient water. I have been fighting it for over a year. My entire reef was covered with that macro but now it is had to find. I used very aggressive manual removal and it is still there but I keep one step ahead of the stuff.

Honeybee