Koi Fish Information Centre

Steve,
I just wanted to clarify that I didn’t suggest aeration from the bottom of the pond but rather a floating surface bubbler so it doesn’t cause any actual movement in the total pond volume so the thermoclines stay uniform. It just relies on the warm air from the pump rather than a coil heater.
I’ve also seen web articles where people run a length of pvc tubing from the edge of the pond to the middle so that the end in the middle of the pond is a few inches underwater and then air is pumped through that length of tube to agitate the surface in that area to keep if from freezing over. This method keeps from having to run any wiring into the pond for folks that don’t want to have the wiring and it is also easier to maintain or fix in the event of mechanical problems in the middle of the winter when you might not want to venture onto possibly thin ice if one of the floating ring devices should malfunction.
Fortunately, I’ve never had to worry about my former ponds freezing over. The last time the New Orleans area had a “severe” freeze was Christmas weekend of 1989 when we had sub-freezing temps for 72 hours straight and everything was freezing over… that was also the same weekend that I got married to my last ex-wife. My mom always said it would be a cold day in hell if I ever got married. I should have taken that freeze as a message from God! LOL What was even worse was when things started un-freezing and all of the busted and now-defrosted water pipes in our under-insulated walls started flooding out the walls and homes in the entire metro area since so many folks didn’t turn off their water main, not realizing their pipes had swelled up and busted.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com

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