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Old 12-03-2005   #1 (permalink)
Nisai
 
Join Date: Nov 2005
Posts: 107
Big, clear morning bubbles

In the cold morning (ie. in the 40's F), there are some big and clear bubbles formed on the water surface. I don't see them again when return home during noon all the way to about midnite. I would think that those bubbles are the product of fish slime, some organic in the water, surface tension/cold morning temperature and potential different bacteria activities during the night. Could someone shine a light into this subject? MA Le
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Old 12-03-2005   #2 (permalink)
Jumbo
 
Join Date: Dec 2003
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Yep, you're right. The thin layer between the atmosphere and the water itself is a very active zone of attraction and gas transfer. The atmosphere is 'pushing in' and the rising byproducts are attracted on a molecular level to this same spot. In fact, you could picture those molecules to look like mosquito larva attracted and hanging attached to that thin layer or surface skin ( water molecules and organics). At certain times of the day, you will notice this attraction stronger than others. It is a chain reaction of pH gas release, barametric pressure and temperature variance. The same is true of your outdoor foam fractionator performance.
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Old 12-03-2005   #3 (permalink)
Nisai
 
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Thanks, JR. Yes, I can absorb your heavy-gun approach. However I forgot to ask that does it mean the water quality is undesirable? Note: there is no small band of smaller white bubbles forms around pond entry and aeration. MA Le
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Old 12-03-2005   #4 (permalink)
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well ,a certain amount of organic content in the pond is inevitable. But too much is a problem. Organic material of all kinds must eventually go the way of all flesh- and decay. The activity of the bacteria that do this along with the byproducts of that process lower oxygen, raise nitrogen waste gases and reduce oxidative nature of water.

Since pond water is an extension of a koi’s bodily fluids, this also effects the metabolism of the fish that must live in this water.

Just keep up with water changes, feed less when you see the foam building and watch your stocking levels as the fish grow.
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