PH Buffer, Die Die must. Period. Options

[mountain]

splitted from thread here.
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I think for PH crash it might be misleading to have SODIUM BICARBONATE as 1st line of treatment .. SODIUM BICARBONATE is for buffering water, and not for treatment of fish's health plus if the PH crash, HB wouldn't advised you to dump 2 teaspoon of BS into the water immediately

[goldrush]

To add further to this interesting discussion

If I find a pond or aquarium where the pH has dropped into the 5 to 6 range, with ammonia at levels of 2 to 10 PPM, then I make a 90 to 95% water or even a 100% change as described by Desireless This means I take out water until the fins of the fish are barely covered at the bottom of the pond or aquarium, then add sodium thiosulfate dechlorinator and refill the pond or aquarium with clean tap water.

Also, some of you still seem to think that a pH of 7 is desirable. It is not desirable(can I use Desireless?) since the biological filter (if you are not using green water) can not function very well at this pH value, requiring much more investment, time, and energy in biological filtration than would be required at a pH value of 8 to 8.5. I agree that a lower pH makes the ammonia less toxic, but then it also generates a higher ammonia level by retarding the biological filtration function. Also, if there are plants and light present, there is a natural pH swing, low in the morning, high in the evening. Plants give off carbon dioxide at night, lowering pH, and consume it in the daytime, driving pH up. If you buffer the pond or aquarium containing plants with baking soda sufficiently, these pH swings will become much smaller, giving less stress to the fish.

Hope I makes some sense to all bros here