They will be fine in that ph. Just acclimate them slowly in case they are coming from a different ph. What is your set up and how long has it been up and running?
I have a 60L with ADA malaya substrate and it is heavily planted. I have Co2 at a low rate (never goes past dark green) and dose EI daily. It has been running for 1 month with an established filter and has no fish or shrimp yet. The substrate is still leaching ammonia slightly so just waiting for it to go before I add anything.