Yellowing bud sites, diagnosis are welcome

[Persolast]

Hello good people of afn!

Great forum you have going on here,great ideas and cool people.

So my 30 day old ROYAL AK was doing great untill acouple days ago when the bud sites started to yellow.
After a look in the hospital section i suspect its iron def.

The plant grows in hidroshop soil & perlite mix under 300 watt led light, good airflow and temps are 17-28C.
ferts are bionova super soil mix npk 5-4-6+2mg0 that was given one half dose and and one full dose after the yellowing started.
Before that only water, ph 6.5-7.
The plant itself is a little overwatered but otherwise looks alright and developing fine so i was hoping to catch it in time so any advice is welcome.

Thanks

 

[briman]

Let her dry out a bit and are you giving her any cal/mag?

 

[Persolast]

Let her dry out a bit and are you giving her any cal/mag?

Thanks for the quick reply
I dont add cal mag as my tap water has plenty in it, i let it sit in an open container for 24 hours and then mix nutes and balance ph.
I did grow another ak that showed similar signs at but had other issues.

Could it just be a cal mag hungry strain?

 

[Truu]

It just looks over watered to me. If anything it may be a little N def but I don't see it.

 

[Persolast]

It just looks over watered to me. If anything it may be a little N def but I don't see it.

Def will let it dry out this round.

Nice profile picture!

 

[briman]

LED lights suck the cal/mag right out of plants. I would let her dry out and get a cal/mag supplement to be safe. Cal/mag is one of the cheaper additives.

 

[Persolast]

LED lights suck the cal/mag right out of plants. I would let her dry out and get a cal/mag supplement to be safe. Cal/mag is one of the cheaper additives.

The yellowing did start after right after i moved her under the led.
I will pick up a bottle of bothanicare cal mag + for the next watering.

Thanks for the advice.