Uncontrollable High pH

The water here is off the chart on my test strips for ph and Total
alkalinity (kH, I believe). Is there anything I can do to lower the
Alkalinity, and then the pH, preferably without changing the hardness?
The hardness is just right, it runs right around 120 ppm. I've tried
just about everything, from using plain pH down by Aquarium
Pharmaceuticals Inc. to a buffer put out by Sea-Chem named pH 7.0
Neutral Regulator. I've also tried boilling the water before adding
these chemicals. I've tried using something like 50 times the
recommended dosage of both on a gallon of water I had sitting in a
bucket only to not have it change at all. I've got some Africans, some
Convicts and some Angelfish, all of which absolutely thrive in this
water (they are all breeding, at least). Will the Rams do okay in this
seemingly unchangable water? If not, is there some way I haven't thought
of to change the pH? I want desperately to try some fish that require
neutral or acidic water such as Rams, but the quest seems hopeless.
Thanks for any help you might be able to provide.



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