Im not a scientist or an ictheologist or even a doctor, however I do have a pond. A new one none the less. From what I can gather, when the water gets warm, and if you have shallow water with gradual banks you will get alegea. The little fish seem to like it but it does make the water unsightly.

There is so much information written/typed on this web sight about it that it literally overwhelming.

I have come to the conclusion that alegea will be a permanent part of pond life as long as there is a sitting bowl of semi stagnant water. The main culprit that I have witnessed is shallow waters. I have one area in my 1acre pond with a shallow grade and that is where my alegea factory is. Everything else is steep banks and nothing grows there.

I keep the O2 going and treat the alegea a little bit but I am of the belief that it's all one big food chain and chlorine is not an option.