How often were you feeding? Looks like every watering and with that agressive of ferts it's certainly fried. I would probably flush them immediately with fresh water to leech out some of the salts in the soil and wait for one of the people with a weed PhD to give you the specs on it. I wouldn't feed them again. In the meantime, you should fill out one of the troubleshooting forms, (just search for it) so when the masters drop in they have all the info and don't have to play q&a. Best of luck and I'll be around to help if I can.