Brown snot algae?

[LD50]

So, I have had green hair algae, brown algae, and even bluegreen algae....but now I have a new contendor. It looks like green hair algae....with a more snot like texture. But it is brown in color, I do 50% WC's every couple days and I run my lights for 8 hrs a day. I have one 3" Fahaka puffer in this 90g tank so over polution is not an issue. I cleaned as much of it up as I could and blacked out the tank for a few days and the stuff still grew back. I have attached some pic's to see if anyone could ID this stuff and/or give elemination advice. Any help will be appreciated, thanks guys.

 

[Fat Homer]

I once had something like that in one of my puffer tanks... came off really easily with one scrub from a kitchen scrubber and never came back... although in my case it wasn't on the plants, just on the sides of the tank...

 

[CHOMPERS]

In the second picture, it looks like nitrostomas bacteria. It's actually quite rare. Check your tap water's nitrate levels. Also, start pre-treating your fill water before adding it to the tank.