Tons of brown algae (?) with bubbles...

I'm a week into my cycle (just for reference, 75gal, 75lbs of fully cured LR, 40lbs of LS) and have brown algae growing big time of the rocks and sand. Its also bubbling majorly in the regions with algae growth, tiny little bubbles that slowly jump off the sand.

Also for reference I added a frozen cube of krill (that I had for my established tank) to help give the scums something to munch on.

I've been testing the water daily and am seeing 0 ammonia, 0 nitrite, and mayyybe 5ppm nitrate (I'm not so good at the color matching game, the girlfriend says it looks more like 0 to her).

Soooo whats going on?

Note the white things in the picture are bubbles:

 

diatoms, looks light. normal.. i wouldnt add anything to tank for a few weeks.. (livestock,rock,food,etc.) if you have a powerhead you can aim it at the sand a little to get some current there..

 

dinoflaggellates. do a quick google searcch, you'll get plenty of info

 

They'll go away after a couple weeks. I just transferred to a new tank and I'm going through them now. They suck.

 

new tank syndrome i call it. happends to us all! it will go away in a few weeks...

 

So diatoms or dinoflagellates? How to tell them apart?

 

i had that in my refugium for a couple weeks... went away on its own

 

http://www.3reef.com/forums/algae/dinoflagellates-74614.html

what you have is dino. see how the bubbles are forming. well diatoms dont do this. diatoms tend to have the same rust like color but will not release the bubbles.

see this thread here. just scroll near to the bottom.
A Guide - How to get rid of Hair Algae (and other nuisance algaes) - Canreef Aquatics Bulletin Board

 

it will go away on its own. if your running your ligts cut the light off for a bit.

 

Definitely dinos. Part of the cycle. Like most others said, it will go away on its own. Just takes time, but when it starts to go, it goes quickly