09-11-2011, 04:19 PM
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Originally Posted by patadams66
ok so API Test strip says water out of my tap:
Gh is 120-180 (darker blue)
KH is very low 0-40 (yellowish green)
SO this tells me that there is basically no buffer so the PH going into the tank will not stick. correct?
Depending upon the accuracy of the strips, the buffering capacity is low. But this would explain the tap pH of 7.4 becoming 6.0 to 6.4 in the aquarium.
Monitor this at a water change to see what effect; you can expect the fresh higher-pH water to raise the tank a bit, but we don't want it too great. A rise of up to .5 is OK, I have that. Perhaps change 1/3 of the tank rather than 1/2 and it should be OK.
Last edited by Byron; 09-11-2011 at 04:22 PM..