germination problems please help

my problem is that i just check my run off of a couple extra pieces of rockwool starter cubes i threw in there and it is 7.0. i pre soaked the cubes in 5.5 for a couple hrs then i soaked them in again with 5.8 with half strength super thrive. are my girls already done for and should i water them with plain water cause i didnt water them after i soaked them and put them in the tray and planted the seeds. please someone tell me ill be fine