i know you think ph down is your solution but really the solution is to not use it. For now you must, but I hear that stuff builds up after a while and causes all sorts of issues. RO water, store filtered water or a medium that doesn't cause ph issues would be good alternatives to constantly chancing of ph issues.

Ways around the ph..use lemon juice or muriatic acid or buy the ph down in powder form and add your own water. I just bought a 35lb box for 16 bucks. I know that had to be a misprint which is why I wasnt going to let that deal go, but ordinarily it's still a better price then the liquid form.

Continue to screw around like this and hermies will be your fate. Whether or not this time caused one to develop time will tell. The plants will be stressed from this last ordeal but should pick back up tomorrow or the next day. If they continue to decline then something else has gone wrong. They should not be looking worse, but better as time goes by until they have fully recovered over the next two days. They will start back up where they left off.