Hey Guys, 8.4 seemed just a little too high to me, from what I understand something between 7.0 and 8.0 is a good place to shoot for. I have lovely green water, (Maybe a little too green), tons of forage fish and the like so I can't say that I am seeing a real need to mess with the ph for those reasons. However my water level is dropping due to drought conditions and I am afraid that as my water volume continues to drop my ph will rise to dangerous levels accordingly. There is indeed a lot of limestone bedrock and shale here... in fact part of my pond is built on it.

Owner/Builder of Ottawa Canada's first official off-grid home.

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