hotskate
There is nothing wrong with your
ph, if you are really worried about your
ph ask your
lfs what there
ph is.
I bet that there water wont be much different from yours, if you start to tamper with your
ph. When you buy new fish you might find that they will die.
This is because you have change the
ph from what is in your area to what you want and there might be quite a difference. Most
lfs in the UK leave there
ph alone so that there customers don't have
ph problems when they get the fish home. You will find most community fish are somewhere in the 7-8
ph range and your fish will adapt very easily.
If you was to make a biotope tank of a area of the world then i would say yes to changing your tanks
ph, but when you have a general community tank you might have fish from differant parts of the world living in one aquarium. You can't have a differant
ph for each type of fish so you have to acclimatize them to one
ph.
I hope i explained that OK, sometimes i have trouble writing down what i mean to say.