Have made a contact on Landon at AquaFix and they will be onboard shortly. We got interested in these products when we started to see all the spirogyra under clear ice as early as December and especially after aeration shut down.I treat 16 ponds plus my two monthly with it from November to May and then switch to a warmer water product.I do very little FA control any longer with herbicides.I became interested in this as I had too much FA pressure early in the season prior to being able to stock tilapia because of temperature. I also had elevated ortho P and NO3 levels prior to aeration startup in the spring from where they had tested at aeration shut down.Still had the elevated levels with winter aeration and no bacteria. I realize its difficult to have a barometer to see where they may or may not be of value, especially with all bodies of water being a "one of a kind" I think the work in the waste water industry and the EPA monitored results have given some additional tools in pond and lake management with bacterial products. NOTE Post not meant to be a commercial.