think i have a phosphorus problem and possibly something else thanks for the help

yungd8383 said:

These plants are about 12 weeks old in 7 gallon pots, ffof soil, general hydro flora series nutes watering every other day with ro water using calmag with the GOFS system. Started under t5, moved to mh, then recently to hps while im rebuilding a few things in the veg and clone area. I think the purpleish color is phosphorus what can i add to help that but the claw and leafs folded in the center what could that be could they be getting root bound after all this time?

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