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Old 02-25-2013, 07:48 PM   #1
cyfan964
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Green Spot Algae


So I've got some green spot algae for the first time and was wondering what I should do about it or do anything at all.

I have an incredibly low tech tank - no CO2 of any kind. The only leaves that are having problems are the anubias leaves right near the lights.

My question is: Do I need to address the problem or will it likely only spread to the brightest spots in the tank. Can I just cut down my light time some more?

Thanks!
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Old 02-25-2013, 07:51 PM   #2
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If you have phosphate, dose it. GSA often disappears when you dose more of it. BTW, Anubias are phosphate hogs. I don't think light is the issue. When I have too much light I usually get BBA or GDA.

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Originally Posted by cyfan964 View Post
So I've got some green spot algae for the first time and was wondering what I should do about it or do anything at all.

I have an incredibly low tech tank - no CO2 of any kind. The only leaves that are having problems are the anubias leaves right near the lights.

My question is: Do I need to address the problem or will it likely only spread to the brightest spots in the tank. Can I just cut down my light time some more?

Thanks!
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Old 02-25-2013, 07:54 PM   #3
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If you have phosphate, dose it. GSA often disappears when you dose more of it. BTW, Anubias are phosphate hogs. I don't think light is the issue. When I have too much light I usually get BBA or GDA.
Thanks for the info! I have some P2SO4. Any recommendation for how I should dose a 55 gallon tank if I want to keep it ultra low-tech?
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Old 02-26-2013, 01:29 PM   #4
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Not sure what P2SO4 is.

You usually don't need to dose much phosphate but unless you have an accurate scale, it can be tough to figure out how much you are dosing. Without knowing what your fert is I don't want to hazard a guess of how much to add.

I use KH2PO4, a scale and the Fertilator program over on APC to figure out how much to dose. You have to be a member there to use it, but it is a pretty nice fert calculator:
http://www.aquaticplantcentral.com/f...fertilator.php

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Thanks for the info! I have some P2SO4. Any recommendation for how I should dose a 55 gallon tank if I want to keep it ultra low-tech?
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Old 02-26-2013, 05:06 PM   #5
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Originally Posted by cyfan964 View Post
Thanks for the info! I have some P2SO4. Any recommendation for how I should dose a 55 gallon tank if I want to keep it ultra low-tech?
K2SO4 is Potassium Sulfate and will not help
KH2PO4 is Potassium Phosphate

Last edited by syzygy9; 02-27-2013 at 03:55 PM.. Reason: K/P typo
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Old 02-26-2013, 08:34 PM   #6
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Quote:
Originally Posted by cyfan964 View Post
Thanks for the info! I have some P2SO4. Any recommendation for how I should dose a 55 gallon tank if I want to keep it ultra low-tech?
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Originally Posted by syzygy9 View Post
P2SO4 is Potassium Sulfate and will not help
KH2PO4 is Potassium Phosphate
Not sure what P2SO4 is. It is not potassium sulfate.
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Old 02-26-2013, 09:34 PM   #7
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Originally Posted by syzygy9 View Post
P2SO4 is Potassium Sulfate and will not help
KH2PO4 is Potassium Phosphate
Potassium = K
Phosphorus = P
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Old 02-26-2013, 09:56 PM   #8
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I have this also but like it.
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Old 02-27-2013, 03:59 PM   #9
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Quote:
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Potassium = K
Phosphorus = P
Correct...I had a typo which probably just made things more confusing. It is now corrected.
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