N toxicity/lockout or what?

[Mr.Whit3]

Hi guys, reading from years till now.. don't write a lot, internet here cold be unsafe. Anway, short sad story I'm a good organic grower but seems coco isn't my medium. Picture attached is from a 3w flowering critical (ripperseeds version) under a 600w hps, a weed ago i see some tip burn so i flushed with a flushing product a restart feeding @1EC. I'm running canna coco a+b, some humic and some ph down. Fact: Small flower very hard, leaf curled an EC of runoff with drippers is 0.8, when i have waterd by hand ec runoff is 1.2/1.3.. can be a problem of poor water distriburion? I have 2 drippers in 7L smart pot. EC inflow is in range, and i have a lot of runoff so coldn't be "standard" salt build up. Any suggestion? Thanks

 

[Mrmedicine]

For me it looks like mites (broad/russet mites)

I Hope im wrong because this mites are a big problem. They are 0.2mm big, so fucking tiny you cant even see them with your eyes.

 

[TnTLabs]

yeah broad mites or too high of a ec in the medium.. do a slurry test!!

 

[Mr.Whit3]

Broad mites guys ,thanks for the help!

 

[SnakePlissken]

Good ref for new and old coco growers.

https://www.cocoforcannabis.com/principles-fertigation-feed-water-cannabis-coco/