New To Growing Some Help Needed Please

[Blacks0113]

Hey im totally new to growing. Growing some autos having issues with one dont know what it is im using 12litre root nurse 3quarters are filled with biobizz allmix soil and top 1quarters filled with biobizz light mix. It was all going well untill a few days ago leaves tips are crinkling and turning odd colour really want to sort it before it gets to late any help please pics includes

 

[RedHotPoker]

“Perhaps” your nutrient level is just too high. Try flushing the pot?


RedHotPoker

 

[Mr.jiujitsu]

What’a your light?