Nutrients Sprayer Funk

So I’ve been using GH trio line and also dehumidifier water ph correctly I mix my nutes ahead of time in a 5gal container then fill up my 2gal sprayer when I went to feed today I noticed my nute water was a bit funky ive probably had it mixed and sitting for about the last week or so is this a nono could I have fucked up my girls they seen healthy and doing great in beginning of week 3 of flower kinda worried cause the 2 girls also have a little bit of the same funk I feel that the qater has please help

I think it’ll be okay, but if you run into issues, you can use hydrogen peroxide. It kills all the microbes including the good ones, so you’ll want to add them back in.
If it were me, I would let it ride though.