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Post by 3littlefishes on Apr 9, 2013 20:57:26 GMT -5
my 55 gallon heavily planted tank turned green overnight! I did a water change and that just seemed to encourage it. The only thing I can think that caused this is the removal of my duckweed. Can anyone tell me how to get rid of this without hurting my plants? I have never had this happen before!
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Post by guppyguy on Apr 9, 2013 21:11:32 GMT -5
I have never had green water issues. But its a form of algae. So like with any algae issue. You need something that will suck up the extra nutrients as well as a large water change will help. Mosses and hornwort can help.
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Post by plantedrob on Apr 9, 2013 21:30:35 GMT -5
Green water is usually caused by 3 possibilities, ammonia spike, imbalance of nutrients or co2 fluctuations. The co2 can explain why when you did a water change it made it worse because water changes introduce a temporary co2 spike encouraging the algae even more. Your best bet may be a 2 day black out and a large water change AFTER. Also when I say nutrient imbalance I don't mean too much, algae thrives better in fluctuating levels.
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Post by guppyguy on Apr 9, 2013 21:38:32 GMT -5
Thanks Rob we has same idea but your response was better on this one.
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Post by 3littlefishes on Apr 9, 2013 21:44:49 GMT -5
Thanks Rob, you are probably right, CO2 sounds like the culprit. Do you think the blackout will harm my plants?
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Post by plantedrob on Apr 9, 2013 21:52:23 GMT -5
No problem. Your plants will be fine. How much light do you run in that tank anyway?
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Post by 3littlefishes on Apr 10, 2013 12:40:03 GMT -5
I run 108 watts....2 T5s. I never had a prob with it yet though.My patio door is next to the tank though, and with the sun getting longer and stronger that may have also caused the prob. I am keeping the curtains shut on that door for the season!
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Post by Rainbowfish Alan on Apr 10, 2013 17:10:21 GMT -5
Did you recently have a disturbance to the substrate, or have a death in the tank? An ammonia spike could have triggered the GW. I agree that a blackout is the best option.
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Post by 3littlefishes on Apr 10, 2013 20:30:40 GMT -5
no and no deaths. I also tested the water, it was 0 ammonia 0 nitrite, very little nitrates (prob. because of the plants). I will see what happens after lights out!
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