Okay to cycle tank with really low ph??

[JenniferL]

Just a quick question. Not a newbie here but have recently moved and just made my first batch of water to get my tank up and cycling etc. but my pH is sitting at 7.4! The reason I ask this question is because I am an hour and a half away from any salt water store and just picked up my live rock today which is sitting in a tub waiting to be added to my tank. Will it be detrimental to the start of the cycle or my cured live rock to get the tank going with water at such a low pH until I can get somewhere to get something to bring my pH up? Any suggestions? thanks