Dropping PH
That’s why I am asking about the two 10G tanks, that seem to maintain a pH of 7.0 while the 46G tank is dropping to 6.0.
I’m thinking there must be some level of KH but less than 1 degree (or less than 18ppm) of KH, since it changes color after the first drop of reagent.
If the bioload of the 46G is a heavier load (per gallon), this would account for the pH lowering faster in the 46G… or is there something in the 10G tanks that is helping to maintain the KH level a little better in them… but still less than 1 degree of KH. Or is there something in the 46G that is counteracting the pH such as driftwood or other source of leaching acidic substances.
Knowing the GH would also give us an idea if Baking Soda (Sodium Bicarbonate) could help, for more precise control of KH, while waiting for the source of Calcium Carbonate (either crushed coral, cuttle bone, etc.). Calcium may not be needed and baking soda is a lot easier to measure and dose and less expensive to acquire.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com (Links to articles referenced above listed on the right side under Archives - Year, Month and under Labels)
Category: Philippines Internet Koi Society
