HELP! My outdoor plant is looking rough!

Can anyone help me diagnose what is wrong with this outdoor plant? Plant is on week 3-4 of veg.it's my first attempt at growing. Waiting for my Ph and ppm stuff to arrive so I can correct the water and nutes ppm and ph. It's in a 5 gallon bucket. Water every other day (same with nutrients) and this is the first week this plant has been on nutes which I use Fox Farm. It has some spots on the leaves here and there and the new growth on the tops are just not growing or growing very unhealthy. Some are turning yellow and growing to the side, and are purple on the tops of the stems. Which I know is usually a calmag deficiency. I'm trying to learn and their is a lot to learn so I figured I'd ask people with experience. Thanks guys

what medium are you in? looks like cal def, but maybe your ph is causing issues or locking it out. you'll find out when you get your meters

Yea you have a cal mag deficiency id start adding some to your water. Id also foliar with an iron/zinc and then and epsom the next day. It could be a micro issue. I get similar issues on and off, although your new growth has burns on it mine just look yellow near middle and look really thin, symtoms if zinc deficiency. The leaves should repair themselves mine have