Water Surface Clouded with Micro Bubbles, O2 or CO2? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 10-15-2014, 04:20 PM Thread Starter
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Water Surface Clouded with Micro Bubbles, O2 or CO2?

Did some searching around but couldn't find a clear answer. Some mornings I generally find hundreds of tiny bubbles on the water surface, is this CO2 or O2? I know plants take up CO2 and release O2, but not sure if this is excess CO2 bubbling up to the surface at night or O2 from the plants.

I always pull my DIY CO2 before lights go out. I think the reason for so many bubbles is partially due to working inside the tank lately, re-arranging plants and whatnot and oil residue from my hands.

10 Gallon
Canister Filter
DIY CO2
Dual 26 Watt CFLs/8h

Thanks!

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post #2 of 7 (permalink) Old 10-15-2014, 11:16 PM
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I'm not sure how your filter output is set up, but otherwise my first guess would be just air bubbles mixed into the water and getting trapped in the surface film, so, mostly N2?

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post #3 of 7 (permalink) Old 10-16-2014, 12:40 AM Thread Starter
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I move the output out of the way to get the shot, but it's positioned towards the mid foreground of the tank slightly up for surface agitation. N2 hadn't even occured to me.
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post #4 of 7 (permalink) Old 10-16-2014, 06:11 AM
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I think it's basically everything-bubbles. That is, all the gasses that are released in your tank get caught in the surface film as they rise. Mine come and go. You can get a surface skimmer or something if it gets really bad.
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post #5 of 7 (permalink) Old 10-16-2014, 07:22 PM Thread Starter
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Everything-bubbles, I like that . Alright, just wanted to make sure it wasn't something crazy like my tank crashing and whatnot. When you're new to the hobby, every little change that bubbles up freaks you out lol. Thanks!
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post #6 of 7 (permalink) Old 10-17-2014, 01:22 PM
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Its not caused by O2 or CO2. I get the same thing on my surface when I do my Mono Potassium Phosphate (KH2PO4) dosing so I am thinking its related to the phosphates. I am getting a filter-attached surface skimmer to help with the issue.

Last edited by laconic; 10-17-2014 at 01:23 PM. Reason: additional info
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post #7 of 7 (permalink) Old 10-17-2014, 03:21 PM
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My 55's surface is always littered with bubbles by the end of the photoperiod. I believe its a combination of O2 from pearling and streaming and CO2 from the diffuser. Once the lights shut off with the CO2 it only takes about 15 minutes for the surface to clear.

55G High Tech, 3G High Tech, 3G Low Tech, 2.5G Low Tech, 5G Low Tech
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