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the garden variety: Cleveland Botanical Garden Blog

Posts Tagged ‘Winterize Pond’

December 9th, 2008

Winterize Those Fish?

Where do the fish go?

 

Visitors often approach me with a look of grave concern etched in their faces and ask what I do with the Children’s Garden gold fish during the winter months. The answer is simple. I leave them right where they are most happy – their big pond. I slow down their feeding in late fall, allowing them to just eat off the bottom. Water pond experts might recommend a feed formula designed for the spring and fall. I stop feeding the fish once the water temperature remains a constant 45 degrees and colder. The bacteria in their digestive system cease to function and the fish enter a semi-dormant state.

The key to winter pond management is providing the opportunity for gas exchange. There must be a hole in the ice to allow noxious gases produced from the breakdown of organic matter to escape and fresh oxygen to enter. I simply use a pond heater found at most local water garden supply stores. Some people also use aerators, but for gold fish this is not necessary. I found most small aerators available to homeowners will not do the job in the coldest winters even though the water is agitated.

Posted by Josh Steffen

Cleveland Botanical Garden
11030 East Boulevard
Cleveland, Ohio 44106 USA
t: 216.721.1600
f: 216.721.2056
http://www.cbgarden.org/