Originally Posted by Stressless
Ok... asking the other way dint work.

I've found to raise the pH 1 point in surface water say 5.1 to 6.1, one should add 1 ton of AgLime per 1SA of water. -- Does anyone know any different?

Is there an opinion on calcite or dolomite lime?

Some light reading for you. http://fisheries.tamu.edu/files/2013/09/SRAC-Publication-No.-4100-Liming-Ponds-for-Aquaculture.pdf