Winter ponds and ice just go together. At least that’s what you expect when things get really cold. If you like ice skating it’s arrival is probably welcome.
But ice can cause a lot of problems too.
We know that when some ponds get covered with ice for extended periods of time, a lot of unwanted gases can build up (like methane for instance) and this can create problems for fish. The easy and direct solution to this issue is to simplly open up or maintain a hole in the ice so that fresh air can get in and bad gases can get out. Problem solved.
When you’re dealing with an issue like this, a good quality “standard” pond aerator will do the job. Just a single diffuser at a depth of 5 or 6 feet will create enough bubbling action at the surface to maintain open water.
But what about those situations where you need to maintain open water in larger areas?