Review on Danner 14580 Large Diffuser Length by Rachel Harris

I see complaints and would like to say that this ring works very well. 4000 gallon pond 3-4 feet deep. 37 adult koi. A $28 aerator is cheap enough to replace every year when needed. Yes, it clogs within a year or two, but it's called algae and chemical deposits, and all brands clog. The ring is the best I have ever used and have used them all. Your fish and your pond need air. This creates an even circulation of air and keeps algae and fish happy through the ventilation. We use it halfway up the sidewall for air in the winter and keep the hole in the ice better than expensive heaters. Take your time and assemble it carefully. I've never had a problem with any of the 3-4's I've bought over the years. Buy new this year. This is a must for your carp pond. Your fish will thank you.