Doing my weekly testing, and my pH dropped to the low end of the readings, using the 5 in 1 test strips. Based on the color, I'm estimating it to be about a 6.5 reading. I had a water change planned any way, so went ahead with about a 10% switch. Is there anything else that I should do at this point? My water did get a bit cloudier over the last few days, but looked a bit better this morning, and my fish seem to be doing fine. Thanks.