Foam and sheen - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 11-15-2020, 05:57 PM Thread Starter
Algae Grower
 
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Foam and sheen

Hi All
I have a 46 planted tank. CO2 injected and I supply ferts almost everyday. I also change +50% water every week.
So gar no algae
however the water is been getting a sheen on the surface very ugly and a lot of foam. this happens even overnight after a water change.
it is also happening even before i started adding ferts consistently as I am doing now.
Water parameters shows 0 Nitrite, Ammonia or Nitrate. pH is normal, around 7.8
I make sure to not insert my hands if I have touched anything with grease
So is it possible that the CO2 injected can have some sort of dissolved grease, hydrocarbon or something that is been causing this? I can not find the source for this.
I use 2 filters, One was cleaned a week ago, the other about 2 month ago.
here some picture including one with the whole tank
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post #2 of 3 (permalink) Old 11-18-2020, 08:22 PM
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This is normal it's a protein film. I have it on my tank too. I'm skimming it off periodically. I'm looking into getting a protein skimmer. I use to not have this issue not sure what has changed.
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post #3 of 3 (permalink) Old 11-24-2020, 04:58 PM Thread Starter
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Yes , exactly like that . I never had that issue in 5-6 years using the tank. Suddenly I have it. I am doing now 70% water change . it has slowed down but showing after 5-7 days
Can someone in this forum put some knowledge to explain this?
thanks
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