Extreeme algea outbreak! Help please

[terrell wohlrab]

Hey guys. I've had my tank for a few months now. And it has been very very good to me as far as quality goes. About 2 months ago I picked up a piece of love rock from the LFS that had some cyano on it. And it took over my entire tank.

It came to the point I had to dose with chemiclean and it completely eradicated the cyano in about 2 days and the tank looked great again. But now I have an algea outbreak to the point I fear for my tank and need some help

 

[terrell wohlrab]

These pictures really dont show how bad it is. And this is AFTER I just spent about 20 minutes with a scraper grabbing the glass, and scrubbing down the rock trying to physically remove as much as possible

 

[RyanCSGO]

Hey there, Whats your water source? and what are your tank parameters?

 

[Husker]

If you are using quality RODI water and have a decent skimmer, my advice is just to keep doing water changes, add a bunch of snails, and wait for it to slowly go away. I battled a bunch of algae in my tank and tried all sorts of chemical means of dropping phosphate (lanthum, GFO), but the phosphate depletions ended up killing many of my SPS. Once my tank hit about the 6 month mark, the algae problems stopped. (I also got a Kole tang at this point and he is an impeccable grazer, and part of the problem may have been phosphates in organic material on my rocks). Now, my tank is about 9 months old and there is no algae, even with 1x per month water changes.

 

[fallenlordz]

Hows the phosphates? Maybe a cleaning crew can help you control your algae.

 

[Surfandturf]

Size of tank, how many fish, how many corals, how often and how much do you feed, what do you feed? Tank glass looks extremely dirty...

 

[jsker]

As above have asked
Po4 ??
No3 ??
PH
what type of lights are you running

 

[Charlesbrooks]

I have been there. I am not a fan of using any kind of chemical to eradicate cyano. I am big fan of using more of a natural means to eradicate this problem. I believe Husker put you on the right path. I want to add, try to mechanically remove cyano by siphoning all that you can when you do your water change.
I finally got a hold on my cyano problem by completely covering my tank, depleted it of any kind of light, for 72 hrs.

 

[terrell wohlrab]

hey guys sorry busy with work!

Po4-.05
N03 15ppm
PH-Untested
Amonia- i have a cheap test kit but it is showing near zero, Between the 0 and .25ppm color
10g tank
2 clown. 1 coral banded shrimp. 1 decorator crab
I use a marine pro LED set around 30% intensity. Lights are on rougly 12 hours a day
Fish get fed every other day alternating between pellets and mysa shrimp

I use RO water i get from my local grocery store(wegmans) not sure of the brand its just listed as "pure" water, i get it from a RO machine
Changes are done every week on tuesday ~30%

After looking through forum posts i think i have ID'd My problem to be diatoms

 

[terrell wohlrab]

https://primowater.com/self-service-refill-water/

Here we go, this is what i use

 

[terrell wohlrab]

Tank glass is actually pretty clear along with the water except for the spot on the left.... Like I said I took this RIGHT after scrubbing so it was cloudy but it has completely cleared up now

 

[terrell wohlrab]

Decided to go lights out for 72 hours and see if that will help kill some off. Going to do a water change friday and try to suck and scrub as much of it off as I can, so far 48 hours into it the tank is pretty clean. But I know as soon as lights go back on it will be back in a few hours