DAY 52 OF FLOWER=00 KUSH INPUT HELP

flowering period 50 - 60 days it says
Indica
excellent Buds
citrusy aroma
powerful high
This is from the web site 00 seeds
grown with a Mars 900 watt led now at 18" above plant
7 gallon air pot
nutri mix hp =soilless mix
blue planet nutrients at 25% strength at every watering plus 4ml cal mag per gallon
4x4x7' tent with 4
320cfm Hyper fan and carbon filter and a 16" osculating fan
watering with RO water 3 gallons every 3 days with just alittle run off
This past week and a half I've cut my ferts back alittle do to leaf tip burn I flushed one week ago with 18 gallons of ro water then the last gallon with a nutrient PPM of 470, then 2 days ago watered with just ro water the first 2 gallons and the 3rd gallon with 450 PPM of ferts when I went into flower I went from a 5 gallon to 7 gal air pot and flushed a couple weeks before that,so MY QUESTION IS from what you see do I continue to use nutrients or stop and use just ro water from here on out, HOW MANY DAYS LEFT DO YOU THINK and what should I do Thanks

doing a 00 seed myself...chocolate skunk....awesome plant...im noob...but get pocket microscope...then you know exactly when,,right? yours looks green still I think,but what the hell I know,,wait for 60 % white hairs to change color? plant most ripe when all cloudy trichomes,,I read that when most thc....im noob but,the one I harvest already seemed to ripen still while it was hanging / drying...idk,,got to figure that out,,,nice colas tho !!!!!!!! GROW BIG!!!!!!!!!!!!!

Is there a seed in the bud in first pic??

no, she's putting on weight now ,I can't wait to see how much more she fills out and becoming more solid too..The Kush started on February 21 , so I'm ready ,but she's not ,DAM IT haha,story of my life,looked yesterday with my 60x scope looks clear to me ,I will wait till pistil hairs turn more color and check this Friday,this is my 1st grow so everything is new I wonder how much yield I will end up with, I can't wait to smoke that BITCH

4fingerliddays, how did it turn out? any chance to know 3 years later?)

doesn't look like indica to me