Adjusting aquaponics pH with hydrated lime

Log date: 11/1/2014

The aquaponic water has dropped down to pH 6.0 again.

Aquaponic pH 6

This is a chance to add some calcium to the system via hydrated lime. Added one tablespoon to the water.

Aquaponic pH 7.2 after adding lime

A preliminary test shows pH 7.2. But need to let the water stabilize before the test is accurate.

This will add some needed calcium to the plants since the water here is very soft containing no calcium. Last week, the system was dosed with kelp extract and the plants have had minor responses.

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