Barneys Farm OG Kush

started looking better but every time I water no matter how much they seem to be over watered. maybe they need a bigger pot but I feel they still not ready to transplant. some leafs on the bottom are yellowish which idk y cuz I started using cal mag and grow big after I noticed and its gotten worse I think. im getting a new set up so hopefully that plus a transplant will help everything. gonna hopefully pump a few grows out once I get this one going as ill have multiple set ups.