my filter had a coulpe parts broke off and isnt working. i ordered the parts. i sent my take back up not to long ago. right now there is only 11 fish in the 100 gal tank. they are all small fish. last night i tested the ph lvl and it looked like 8.2-8.4. my tap right now is about 7.4-7.6. i did two 25% water changes the last two days. today i checked the ph again and it says 7.4-7.6. can the ph lvl change that fast over 10 hours? i am using the hagen ph high range test.
