PH and rock

[Maltimomma]

Yesterday I put tank water in a bowl and the rocks I'm considering putting in my tank. The Ph readings have been running consistently 7.6. When I tested the water in the bowl this am it was 7.2. Is that a problem? Is there any thing I should be concerned about. The rocks came out of my yard and I did do the only test (vinegar) I can do.

 

[BHead707]

imo a drop by .4 isn't too drastic. what fish d o you have in the tank?

 

[Maltimomma]

imo a drop by .4 isn't too drastic. what fish d o you have in the tank?

I have 3 tanks and two of them there are Angelfish, gourami, rainbows, corys and bn pleco, and in the third there are dwarf gouramis, bloodfins, blackskirts, cory cats and a 3 bn juvies.