any idea whats up with my blueberry

Unfortunately yeah they can be costly but in the long run well worth it. For sure not the 24/7 u had the blues on that's way too much feeding and at a high ppm for such small plants. Yeah I would say only when lights r on and less.

Ok m8 cheers il do that tomoz and see how it goes for the week

Good luck bro

Ok so changed the Res and left at 5.6ph 21c and ppm 300 and also raised light will get a few more pics up tomoz

heres a few pics this morning after changing the res yesterday an no nutes in it