diagnose these.

[headband 707]

Blueberry is really nute sensitive. I run them at and EC of 1.2 or 800 ppm. I have found that they cannot be run with other strains that need high nute levels.

Yeah I would say this is right as it looks like nut burn to me aswell ... I would as I always do back off on the nuts they never need as much as ppl think. They do love the Molasses so wait a while and try this.. Thrive B1 is another great one have fun headband 707

 

[Zdub7k]

It looks like the avid burnt them to me....Ive had similar looking plants from to strong of a mix of eagle 20 and avid both...the BB is prolly just more sensitive, give em a couple weeks and if the dont straighten out....off with there heads

 

[Zdub7k]

both pics of symptoms appear to be from the avid to me...Ive had em do both; crinkle up, and throw bi-colored leaves....the new veg growth should be good tho