Zkittlez Auto Fast Buds first grow

Buds are starting to get really fat on 3 of the 4 plants. No amber on the trichomes yet so it will be a few more weeks till harvest at a minimum. The one that did the most stretching is just starting to thicken up on the buds. Been having issues with my drainage system causing a bit flooding in my tent. I see a few signs of deficiencies on one of the plants but I can't properly have access to it to see what is going on. The 4x4 tent has proven to be just too small for these thicc ladies. After this grow I'll be getting a much bigger tent. Any recommendations?