Nute Deficiency

[MrMagic]

Any ideas as to what this deficiency could be. Just the older leaves growing in soil ph 6 to 6.5 water is hard so I let my feed water sit for a day or 2 before feeding and I have to buffer down to 6 or 6.5
I switched to 12/12 light 3days ago so I fed half dose of bloom with the grow and full dose of cal max. I been through the plant problem pages and still a little stumped

[TOKABIGONE]

You're a step away from full blown Nitrogen Toxicity. Those ferts are way, way to rich for a plant at any stage and a no no in flower. I would suggest a nutrient flush minus the Grow formula, then dry out and water again, then feed bloom only from here on out. pH balanced please.

[9fingerleafs]

That’s the start of a magnesium deficiency. What are you using to check for ph? You tried checking Run off? If you are completely sure the ph situation is fine then another nutrient must be locking it out, not sure if nitrogen my guess would be potassium. What’s the ppm/ec situation? Was the soil full of nutrients to start with. Been transplanted recently into hot soil?

[9fingerleafs]

Now that I saw your signature maybe it’s all that phosphorous. My good friend may be onto something with that flush

[MrMagic]

Yeah the signature is wrong I've tried changing it but it keeps reverting. The ferts I'm currently using are Groteks Monster grow and Monster Bloom.
Monster grow has only been feed 3 times: Once at half dose then 2 feeds full strength 2/3tsp per 5gal one of which was today. no feedings of Monster Bloom.
They been in these pots since seedlings. I've found this soil a little hot on seedlings so I don't start using ferts untill close to the end of veg.
I'm thinking phosphorus so when I watered today I used the Monster grow as usual with a half dose of the Bloom and full dose of calmax. I did do a water flush with calmx 4days ago. I also adjusted my intake water up to 6.5ph today as I usually buffer down to 6ph since I'm in flower now I will be cutting out the Monster grow from here on out and just using the Bloom and calmax as needed.

[9fingerleafs]

Just keep using calmag and you’ll be fine

[TOKABIGONE]

Yeah your soil was too hot but it sounds like you have a handle on it now. I checked out your light on Amazon and found it's only 125w actual draw. There are some amazing quantum board LEDs now for about what you paid for that hideous "bluple". You might just as well hold a candle over them as that thing. We live and learn.

[MrMagic]

Im gonna try resetting the signature to default see if that fixes it. The burple is still in service still but I did do a light upgrade its a another tollys but they are using authentic quality parts. The pic is with the light out and just the burple that's why the pic is purple. This light is the Tollys 1000w dimmable led with Samsung LM301B with meanwell drivers it uses all the same parts as the spider farm varspectra and all the others. I did a lot of research on lights this past month and checked it over throughly as soon as I got it. The efficiency debate is for another thread lol..
Going through the diagnosis pages I was unsure of what the deficiency could be. I was thinking PH or phosphorus and wanted to see what others thought it might be. I do also have hard water I forget the numbers but it's always in the back of my head.
there's no improvement after 24 hrs but all the new growth looks good so far.

[9fingerleafs]

It’s for sure magnesium. “Hard water” can be full of calcium and sodium and you’ll still need calmag. I’m sure that will fix your issue.

[MrMagic]

Thx didn't really consider magnesium but you do make sense. It's the coloration that had me stumped. So do you think I should dose with Calmax untill harvest. Looks like they are going into preflower today

[9fingerleafs]

Yes. Better to have a constant mild dose that letting the plant go deficient and then blast until it gets better and repeat. Somewhat in the middle like 2 or 3 ml per gallon

[MrMagic]

Yeah I've been mixing 5ml/gal as per the instructions but now it's a moot point. Pretty sure the dam thing gone male on me. This is why I don't mess with bag or regular seeds. Feminized is the only way to go. 3 months gown the tubes. Thaks for the help. Great info going forward.