Quote:
Originally Posted by Cotham Marble  I'm puzzled by the idea that noxious gasses might build up. Ice is a fairly permeable material and it is only at great thicknesses where atmospheric sealing would occur. And unless the body of water is very deep, the cold will have slowed down all bacterial activity so that putrefaction will be largely on hold. In a temperate climate a frozen pond is a natural environment, unless it's supporting some tender species of plant or animal then there should be no need for intervention. - Or I have I missed something ?
CM |
my pond is contains koi carp, which are apparently very dependent on good water quality,more so than other fish, this being the case, anything you can do to keep the water as clean as possible is a positive step,
the noxious gasses i mentioned can occur in decomposing material on the pond floor (fish excrement, dead plant material etc) which the fish disturb in their feeding amongst the debris so releasing gasses , albeit in small quantities, but if it cannot escape could soon build up,
as fish are more prone to suffer from stress in the winter months, i try to disturb the pond as little as possible to keep the balance right,
dead frogs in a pond can become highly toxic and can soon poison the water to the detriment of the fish life, the smaller the pond the higher the risk i would think,