Looks likwe waaaay overfeeding, or perhaps a ph issue...or both...or neither...

Fill out the troubleshooting form, or keep playing guessing games. They're your plants, and it's your responsibility to give us the necessary info to properly diagnose 'em. And although I'm pretty good at guessing games, wouldn't you like to know what's really going on with 'em?

Copy-n-paste the form here, and answer the questions. The link is in my signature.