Just me guessing but upping your alkalinity via ag lime provides a more stable PH, and the calcium hardness you are short. Higher quality water is more productive and as a result could result in a healthier fish population and blooms.

I guess the big question is....what are your goals for the pond?
- If you are happy with it...why change it?
- If you are looking for more from it, healthier water is a good starting point.

If you decide to lime, you are in full control on how much you add. Go slow, give it a chance to balance, monitor your results over a couple of months and then decide if you want to do more. I hear it takes a bit (month or two) for the lime to take effect.

I am a rookie here and just beginning my new hobby as a pond manager. I'm sure one of the other experienced fellas can help you if you decide more about your goals for the pond.

Good luck!

1.5acre LMB, YP, BG, RES, GSH, Seasonal Tilapia
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