Green algae on sand?

[dangerhack]

hey all, my tank is 200 gallons an been running for 8 months. had serious brown algae for like 3 months then finally recently slowed down.. still get alittle on glass an sand but not alot... all of sudden gettin green algae on sand only not glass... tryd moving it around an it like clumped up in to chunks. how an why is this here an how to get rid of it? lights are usually on timer for 11 hours or so.. no direct sunlight .. ?

 

[F1 VET]

hey all, my tank is 200 gallons an been running for 8 months. had serious brown algae for like 3 months then finally recently slowed down.. still get alittle on glass an sand but not alot... all of sudden gettin green algae on sand only not glass... tryd moving it around an it like clumped up in to chunks. how an why is this here an how to get rid of it? lights are usually on timer for 11 hours or so.. no direct sunlight .. ?

11 hours is alot. Try 8-9. And direct sunlight can still refract on walls and windows and produce ambient lite in the tank. U may not have enough BB to eat the algae. Id put ur temp at 76-78° cut 3 hours off timer and add more ceramic media for bio filtration. That should help, as far as removing it from substrare just rake and vac then 50% water change.

GL

#1 S. Vettel

 

[anarekist]

prolly caused by the long duration of high nitrates in your tank.

 

[dangerhack]

prolly caused by the long duration of high nitrates in your tank.

So what should I do to get rid of it?


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[dangerhack]

I changed timer to come on for only 9 hours instead of 11-12


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[F1 VET]

I just told u


Water change and vac

50% change will cut ur nitrates in half

#1 S. Vettel

 

[kendragon]

Too much nitrate. WC and add some salt. Do not drop the temp, your bass may get ick.

 

[F1 VET]

Too much nitrate. WC and add some salt. Do not drop the temp, your bass may get ick.

Add salt?? For algae and nitrate??

That is bad advice.

Just change ur water and VAC


NOT TO HARD

#1 S. Vettel

 

[kendragon]

Add salt?? For algae and nitrate??

That is bad advice.

Just change ur water and VAC

Yes! People with experience know that many types of algae, most notably, String Algae, will die at 0.3% salting or better. WC will of coarse take care of the nitrate. I maintain over a dozen outdoor ponds and cichla tanks with great results. This method is also published in numerous books including one from Dr. Erik Johnson, DVM. It's just advice for the op to take or leave like all advice on this forum.

 

[COG Commando]

Am I the only one thinking cyanobacteria?? I've never seen algae grow on sand and come off in clumps, but cyanobacteria... definitely.