What algae is this?

[Adam10045]

Im setting up a new tank and it's starting to cycle (finally!!) after 2-1/2 weeks. Mixed in with the diatom, is this stringy algae. I've personally have never seen it and am wondering what it is? It doesn't appear to be hair algae. Any suggestions?

 

[Adam10045]

 

[Adam10045]

I have no idea why the pics are sideways...

 

[Adam10045]

Anyone?

 

[Tahoe61]

Based on the age of your tank I would guess a very bad case of diatoms and cyanobacteria.
If there are bubbles developing on the strands it might be a type of Dinoflagellats. I would take a turkey baster and blow it off all rocks and sand, then clean mechanical filtration once the water clears.

 

[Reefing Madness]

Just a severe case of Diatoms.

 

[Mike J.]

Well, I might be wrong, but I was going to say dinoflagellates. How I beat dinoflagellates, and the lessons I learned ? Advanced Aquarist | Aquarist Magazine and Blog

 

[mpfeiffer1]

+1 on above from Tahoa61 and Reefer Madness. Get the nitrates and phosphates down and you will be golden. I would manually take that stringy algea out. Also, set lights to only 5-6 hours per day and this will help. During the cycle- expect diatoms, micro and macro algeas as well as cyno bacteria. Lastly - add tons of circulation and this will help. GL!