Yeah Bro, don't u hate learning the hard way... feel ya. But it makes us better grower's! I'd flush like up said. Years ago I fk up & fill my 60gallon res. the wrong week schedule. I thought I was going to kill 65 ladies in 10 gallon soilless med. pots. I flushed them and ended up being super crop.LOL Good luck & happy growing. Peace