help plants have overgrown my grow box

[bobadw10]

Strain : Blue mystic auto
Grow box : 2 ft x 2 ft x 4 ft
Soil : Foxfarm ocean forest
Water : Distilled water only
Nutes : general hydroponics 3 part system
foliage feeding : seltzer water and 5.5ph water mix
Time: week 5 from seed

My plants have grown past the light and are bending around
The top of the box. The flowers seem to be small but, there are
Plenty to go around. Will the buds fill in? Does anyone have any suggestions or comments?

 

[greenergrass]

im guessing you left your plants in veg to long, most plants will double in size by the end of flowering .
your going to have to tie them down and maybe even cut out unnecessary bits that arent getting much light

are you able to higher your lights at all