loads of bubbles on top, oxygen levels??? Help!
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Old 05-05-2009, 07:24 PM   #1
mithrius
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loads of bubbles on top, oxygen levels??? Help!


Hello everyone,
my small 2g tank recently has been forming a layer of bubbles on top of the water because of the small bubbler! (i have it on low, but even that makes alot of bubbles!)
this started to happen after i put in my piece of driftwood and i have a feeling the extra 'tannins' are what is causing this.
I have been doing very small water changes every 2 days or so but the bubbles still sometimes cover the entire top!
Does anything know if this affects the oxygen levels in the tank? i figure there is oxygen trapped in those bubbles which stay in contact with the surface untill they pop or move over for another bubble.. but i dont know if this is wrong.
and what about the other stuff that needs to dissipate?
i have a java fern, 2 moss balls and a clump of java moss which i think help to rid of some of the toxins and co2.. so it might actually be beneficial to my plants!
But i dont want my inhabitants to suffocate!!
i keep sticking my finger in there to pop the bubbles, but recently my snail started to be sluggish and i thought maybe it was because of the salt on my fingers?!?!? its a small tank..
i did a water change and now he seems to be fine!

so does anyone have any information regarding a layer of bubbles on top? if its not harming anything, i'd rather just leave it to bubble..

any help or speculations would be welcome!
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Old 05-05-2009, 08:00 PM   #2
Dollface
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Do you have a filter on the tank?

A filter should provide enough surface agitation so that any surface film that's trapping the bubbles wouldn't be able to form.
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Old 05-05-2009, 08:20 PM   #3
mithrius
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no filter, just a bubbler..
im waiting for a sponge filter to arrive in the main! (SO SLOW!)

do you think the bubbles forming ontop is preventing proper oxygen diffusion?
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Old 05-05-2009, 09:27 PM   #4
Dollface
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you might want to look into a Red Sea Nano mini HOB filter
http://www.petco.com/product/12148/R...no-Filter.aspx

the bubbles should be fine, if you don't want them to stick at the surface you might want to try raising your bubbler up a bit.
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Old 05-05-2009, 09:56 PM   #5
mithrius
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i have raised it, and its helping a little bit, but overnight it still accumulates and its not even on very high!
the bowl i have is bubble shaped, and hangs on the wall so the best kind of filter i can find to fit it is a small sponge filter.
you dont think all the bubbles are restricting the amount of oxygen being brought into the water? im hoping not too.... it makes sense kind of...
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