A bit confused, the 9 drops is GH... IF I add the baking soda, that would increase the KH (Which mine is a bit low at 89), which is fine right?
Hi Papa Bear,
My pond is about 6.000 gallon, my filter consist of vortex and chambers(consist of 6), which is about 2.200 gallon, my filter consist of all bio-balls. Currently I only have 2 fish in it, one 65 and the other is 58cm. I have 3 pumps, 3 150w tsurumi (not sure how much water it moves

)... A waterfall with bioballs inside it too, a bottom drain as well. I don't have a skimmer, but there is a top overflow where the top layer of the water goes to the filter as well.