Hey what's going on here?

Yo I got some problems. I run a Titan ebb and grow bucket system. Ph is all sorts of fucked up but I try to get it at 5.8 when I'm watering. Plants are 2 1/2 feet tall. Watering once or twice when lights are on. Noticing leaves are curling upward like a taco and the serrations are like ridges. Here's a pic. Ppm was at 1280 4th week of veg.

Yea, I thought pH b4 I read that ur pH was fucked...but when I ran hydro i know my res pH fluxes alot, I would just run the pump for like a hour and ph while it was circulating, that's prolly not right thig to do, maybe a hydro guy can step in here

Not running any airstones in Rez either and just running heavy 16 veg a and b. gotta get this fixed ASAP though I'm supposed to flip to flower in 2 weeks

Anyone got any insight?