Iron.
I've just sorted one of mine that looked a bit like that. I put a rusty nail in a bottle of Epsom salt rich water, left for a few days then watered. Repeated it a week later. Its fine now.
ps
I grow in soil.
Iron.
I've just sorted one of mine that looked a bit like that. Put a rusty nail in a bottle of Epsom salt rich water, left for a few days then watered. Repeated it a week later. Its fine now.
ps
I grow in soil.
Looks like a bit of Mag. def. Either way a bit of iron rich water with the Epsom salts will soon sort it.
Mine looks like a totally different plant after 10 days, leaves have recovered its green & looking healthy.
Best of luck on your'e grow mate..
Looks like a bit of Mag. def. Either way a bit of iron rich water with the Epsom salts will soon sort it.
Mine looks like a totally different plant after 10 days, leaves have recovered its green & looking healthy.
Best of luck on your'e grow mate..
depending on how strong your lights are it could be light bleaching, generally deficiencies dont affect only the tops of a plant. Move the lights away a little, may solve the problem.