Magnesium Deficiency?

[stone_sensation]

Hey everyone, been looking at my plants lately and they seem to be yellowing a little like a magnesium deficiency, got some pics for you all to see.

Pic 1 is my 3 week old plant but I think it is also overwatered.

Pic 2 is my 8 week old plant with clear yellowing in the middle.

Pic 3 is my other 8 week old plant which seems to be affected the worst.

Pic 4 is a close up and comparision of the 2 different leaves, The yellowing seems to be only on the new leaf sets.

Another possibility is it heat stress?

Please help ASAP thanks

[stone_sensation]

Or is it Iron deficiency lol?

[Chronic Chrissy]

That.loks.normal.to.me.an.definately.not.a.Mg.def. .Pic.1.is.way.overwatred(I.had.this.problem.with.a .few.clones.once..The.new.growth.is.usually.lighte r.green.till.the.leaf.opens.and.the.light.activate s.the.chlorophyll..When.they.get.bigger.you'll.not ice.that.leaves.and.branchs.in.the.shade.keep.the. light.green.color.til.they.are.exposed.to.light..

Stop.overwatering!

[dusto2k3]

what kind of water are you using and how old are your plants?

If your using R/o water, then you need to add some calmag+