loads of bubbles on top, oxygen levels??? Help!
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!