Everything says repot now, probably solve your issues. If you ease a plant up out of it's cup and the roots are circling the bottom, it's time.
I doubt your t-5 has been to close, I used to veg under t-5s and would be within an inch.
Your plants are old enough for the hps and id fire it up about two days after you repot.
Mites will destroy your plants in short order as can other bugs. Mites prefer the top of plants and will give you webs on top.
I doubt your t-5 has been to close, I used to veg under t-5s and would be within an inch.
Your plants are old enough for the hps and id fire it up about two days after you repot.
Mites will destroy your plants in short order as can other bugs. Mites prefer the top of plants and will give you webs on top.