hi jacob... do you mean red purple stems?

have you been monitoring you PH of your water?

is new growth slow an stunted?

what medium are you growing in?

is there plenty of nitrogen available for your plants?

are you vegging or flowering?

how old are your plants?


I would guess you are having a ph issue along with nitrogen deficiency. is this problem is not remedied soon, you branches will become red, hard and woody and will be very dificult to reverse..

pictures?

iloveyou