first grow what defiency us this/these

first grow was wondering if anyone could identify this defiency. coco perl 70/30 and fed with GH flora/trio.

Could it be possibly over watered?

i over watered at first but if anything it will be underwatered now. these two plant are the only ones that havent taken off

How much GH are you feeding? ML per gallon.

Coco type?

Could be root systems are just little slower on those.

mother earth and 3ml per gallon on the small one (mostly yellow)and 5 on the larger one (speckled yellow) i just started feeding 5 at beginning of last week monday the 2nd.

I'd look into my pH and be sure you're feeding Mg. Good luck.

Iron or sulfur def. Likely a ph issue

Are you checking pH and ppM readings before feeding?

ph hasnt dropped below 5.7 and has never been above 6.0.

I grow in soil and keep it a steady 6.5. What is your ppm's reading when you feed nutes?

Id say over watered & rotted roots a little which is inhibiting nute uptake & showing sulphur & or iron deficiencies. Let it dry out it'll come back. But its always going to be the runt . I'd 'albino gator' it myself & put the saved effort into the already healthier plants