Your plants are as good as dead if you don't take immediate action. You need to watch them constantly. Sleep next to them tonight. Set an alarm clock and get up every half hour to check on them. No longer than a half hour or they'll die for sure. Call in sick tomorrow, so you can be with them all day. Call your local grow shop and have them deliver a bottle of every nute they sell. Call Publix and have them deliver at least 50 gallons of Evian. Nothing else is good enough. pH each bottle separately at least 3 times. Water them one teaspoon at a time, checking with a moisture meter after each spoonful. Don't you dare touch any part of the plant, it will kill it for sure. You must watch your plants every second or something horrible might happen. Ask any experienced grower and they will tell you everything I just said is gospel.