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post #1 of 9 (permalink) Old 03-05-2007, 09:57 PM Thread Starter
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Thumbs down CO2 film?

Has anyone noticed that a white film will develop on the surface of their water if there's no circulation from CO2? I've noticed this after a few days develop whenever I have co2. What is this and how can it be avoided, apart from having constant surface agitation?


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post #2 of 9 (permalink) Old 03-05-2007, 10:33 PM
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There was a poll a while back about this an I can't find it. It your's really white?

Mine has just been a viscous surface layer, still clear. Holds the O2 from the plants.

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post #3 of 9 (permalink) Old 03-05-2007, 10:46 PM Thread Starter
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well its clear until the return spray bar is raised and causes the surface ripple and then white filamentous strands get sprayed around the tank....yuck...I wish there was a way to avoid this film on the water...


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post #4 of 9 (permalink) Old 03-05-2007, 10:52 PM
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Sounds like a protein buildup to me. Either raise your spraybar up a bit or get a surface extractor.

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post #5 of 9 (permalink) Old 03-05-2007, 10:56 PM Thread Starter
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aha! Found that thread...

https://www.plantedtank.net/forums/ge...o2-survey.html

Thanks LS6Tommy...I just wanted to know if there was a way to avoid it altogether without having to resort to surface agitation (and therefore loose CO2 concentration in my H2O)...guess not!


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post #6 of 9 (permalink) Old 03-06-2007, 12:33 AM
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Originally Posted by styxx1 View Post
aha! Found that thread...

https://www.plantedtank.net/forums/ge...o2-survey.html

Thanks LS6Tommy...I just wanted to know if there was a way to avoid it altogether without having to resort to surface agitation (and therefore loose CO2 concentration in my H2O)...guess not!
Sounds like a protien buildup to me as well. Clean house a bit is the best tact and keep the overall flow of the WC up as much as ou can...Try to avoid a ripple at the surface so your not gassing out the CO2.

RIP - 55g - Eheim 2026 and 2217 - DIY CO2 reactor - Turbo Twist 3x - Tek Light t5 pendant w/ 2x54 6500k - ecocomplete mixed with Red Sea florabase.
"Better to be shot out of a cannon then squeezed through a tube" - HST
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post #7 of 9 (permalink) Old 03-20-2007, 05:46 AM Thread Starter
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Fixed! Well I got the water movement going and it has disappeared! Thanks all for the advice!
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post #8 of 9 (permalink) Old 03-20-2007, 01:12 PM
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CO2 concentration holding? I'm having trouble pushing the limits with my reactor and having a BBA party.
Film for now is a secondary issue till I can get the BBA stopped!

RIP - 55g - Eheim 2026 and 2217 - DIY CO2 reactor - Turbo Twist 3x - Tek Light t5 pendant w/ 2x54 6500k - ecocomplete mixed with Red Sea florabase.
"Better to be shot out of a cannon then squeezed through a tube" - HST
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post #9 of 9 (permalink) Old 03-20-2007, 08:05 PM
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Lay some plain paper towel, the kind without dyes or scents, over the surface just before you do a WC. It will absorb most of the surface scum. Pull it out of the tank and the scum comes with it. Then do your water change. This works for me.
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