ID Algae - and HELP :)

[piznac]

Link to video of this morning:

So this morning is probably the worst I have seen. I need help identifying this algae and possible steps to remove it.

I presumed a few weeks ago this was dinos. So I started doing some research and found that maybe my nutrients where to low and since some of my coals where not looking to good either I decided to take steps to raising those levels a bit (feeding more, turned off skimmer, turned off refugium light etc.). This seemed to work and with daily blowing off of the rocks I thought I was getting this under control. Well as of the last few days it seems worse then ever. Any help would be appreciated.

Parameters tested this morning directly after I made the video and the lights came on.

PH: 8.25 - Hanna pHep meter
Alk: 8.1 - Hanna
Temp: 79
Salinity: 1.027 - Refactometer
Calc: 388 - Hanna
Nitrates: 0 - Salifert NO3
Phosphates: 0.04 - Hanna ULR (Last week read 0)

Some additional facts:

• I does Kalk - Just started a few weeks ago trying to dial in my parameters. Before that I had let the tank go a bit and alk was down to 5 something, ph was 7.8 and calc was 460.
• As I let the tank go the fuge light was on 24/7 for a month or so. Right now it is dark and has been for a week.
• As I let the tank go I didn't do one single water change for several months. I started doing them but stopped as I heard that was bad for dinos. Been a week since I have done one after 3 weeks of doing 10 gallons.
• Lighting schedule is from 9:30ish am to 9:30ish pm (4 t5's 4') - I have a hybrid lighting system and plan on adding some led's eventually.
• All fish appear to be very active and healthy.
• This stuff will typically blow off the rocks easily with a turkey baster.
• I'm about to go try to shipon off as much as possible today without doing to much of a water change.
• Stock list: 2 osc clowns, 1 royal gramma, 1 basslet, 1 coral beauty, 4 blue/green chromis and cleaner shrimp.

Well that's all I can think of it. Any help would be greatly appreciated as this is getting frustrating.

• Is this dinos? If not what is it?
• Anything you can thing of that would help, preferably from some one who has dealt with this.
  
  Thanks!

 

[ichthyoid]

That’s actually Cyanobacteria, which resembles algae. It may go away on it’s own, & you can suction the worst of it with a hose & water change. How old is your system?

 

[ichthyoid]

Also, you don’t want zero NO3 while keeping corals, imo.

There are several nitrogen additives, or you can dose amino acids.

 

[piznac]

System is roughly 6 months old. Ok let me watch this video,. would be nice if that's what it is. (but would mean I have been doing the opposite of what I need to do, which would make sense, since it's getting worse.)

Yeah I have been looking for some some of nitrate dose - So crazy to me,. my last tank 10 years ago - trying to keep ntirates down was the trick of the day lol.