moved grow from 2nd story to basement

im using 10 26 watt cfls and i have 2 2ft tall plants and an 8 inch plant, the 8 inch is almost matured and fine but one of the 2 footers hairs turned deep purple but its no where near ready to be picked, my temps went from 75-95 to 55-65 anyone know if this is bad or normal?

your temp should be 75 to 80 during lights on for best results. are they in flower now? have you trans planted them lately? nutes? lots of thing to think about

Very BAD! If the temps go under 60 - 65 they will slow growth, once they hit 55 they will stunt until corrected.

damn, i guess i should turn all my fans off and try to retain the heat from the lights? but theyve been growing still the passed few days and yes they are in flower 15-15-15 nutes every third watering, i did a google search fro about an hour and read that it could be the start of the plant turning purple? or do you guys just think its the plant getting stressed?