Mag/iron deficiency persistent

All replies are greatly appreciated and welcome. I posted a few weeks ago about a mag/iron deficiency. Initially flushed, have been feeding it R.O @ 6.5 w/ Cal-Mag for 2 full weeks now and I have seen very very little change. I have included pictures of the current state. Im a week into 12/12 also and no hairs have sprouted. Am I wasting my time with this gal ? My other two are thriving so I'm thinking I just cut my losses on this one. Does anyone else know what I can do to rectify the problem ?

Thanks again for taking the time to read and help out. Have a great day.

it takes 2 weeks once u flip to 12/12 for flowers to show up...ive had some that flipped slower than others.

Give more info on the grow, what's the medium? What other nutrients are you using? Take pics only in white light and rather close up. What is the hottest room temp?

polishpollack said:

Give more info on the grow, what's the medium? What other nutrients are you using? Take pics only in white light and rather close up. What is the hottest room temp?

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Coco-Coir mix with earth worm castings & perlite. Temp with lights on 27C - 29C lights off temp @ 22C - 23C Room humidity at 55% all temps are steady with no fluctuations. Lights are about 12" - 14" above plants. Using HLG65 quantum boards w/ Blurps also. Feeding once a week using fox Farm Grow Big ( 6-4-4 ), 2 teaspoons per gallon of water. Regular feeding is R.O. @ 6.5ph supplementing with Cal-Mag & seaweed extract. I'd say I water averagely every other day depending on how the weight test feels.

BurnzyBurnz said:

Lights are about 12" - 14" above plants. Using HLG65 quantum boards w/ Blurps also.

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Start by raising your lights to at least 22".

epson salt or calmag foiler feed maybe?

no more seaweed. try Epsom salt once at 1/2 teaspoon in a gallon of water (4 liters). Just do it once and see if they respond well. You might have to let the coco dry out more too.

ph to high maybe?