First time using high powered led lights

I've been using led since last week in April I've not needed calmag and I'm also using Samsung + Epi star.

I've limited experience with led but I've not needed calmag yet.

This is a subject that comes up fairly frequently I can't decide if it's bro science or not?
 
For me, anytime I get a deficiency like this, I always get my spray bottle out and hit a few leaves with whatever I think the problem is. Like in the OP, it looked like a slight iron deficiency to me, so I would have tested that by mixing up some ferrous sulfate with water and spraying a few leaves down to see if it corrected the problem.
 
You must log in or register to reply here.
Back
Top