Chad, looking at the specs on your pump, it is a very low output...only .78 cfm. That will only operate one membrane diffuser(operating range of .5-5 cfm)...not nearly enough to aerate your pond. It's been years, but IIRC, your pond is pretty round. You should be able to get a good water mix with a matched, quality system. You could also benefit from adding Alum to bind up the excess phosphorous in your water to prevent/reduce future FA growth. Give me call if you'd like more options specific to your BOW