jsoong
Aquarium Advice Addict
Brian, I learn something new today! I always thought discus needs low pH so never even cosider them for my hard water ...
Joe, you might do just what Brian does, ie. take your soft tap water, add crush coral to get a half decent KH, and let the pH be as long as it is stable. If he can keep discus at 7.8, the high pH shouldn't limit your fish choice!
As far as CO2 goes, have a look at the plant forum. I have no personal experience with CO2 injection, but lots of people have reported stable pH with CO2 injection as long as the KH is > 6 & the CO2 injection rate is not fluctuating. <Some have pH meters hooked up to the CO2 regulator & regulate the CO2 with some sort of feedback mechanism, so there is stable CO2 & pH.>
Joe, you might do just what Brian does, ie. take your soft tap water, add crush coral to get a half decent KH, and let the pH be as long as it is stable. If he can keep discus at 7.8, the high pH shouldn't limit your fish choice!
As far as CO2 goes, have a look at the plant forum. I have no personal experience with CO2 injection, but lots of people have reported stable pH with CO2 injection as long as the KH is > 6 & the CO2 injection rate is not fluctuating. <Some have pH meters hooked up to the CO2 regulator & regulate the CO2 with some sort of feedback mechanism, so there is stable CO2 & pH.>