Flowering day 45, fan leaves turning yellow and bentting up - need advice fast

What is your experience level? (first timer, novice, experienced...) first time indoors, experienced outdoor

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's) HPS 400W
.2) Distance from tops? 25cm
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...) none
.4) Is there a consistent fresh air supply? yes,
.5) Do you have an exhaust fan and a circulation fan? 1 35W 15cmx15cm top exhaust, 2 XBOX360 fans, 1 cpu fan intake

.6) What are the bulb wattages, kelvin ratings, and schedule? 400W HPS, 2100K (i think), 12/12 (21:00-09:00am lights on)

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...) don't know, i use this soil for gardening |(i think it's like fox farm)
.8) Size of container. 15lt
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? this clone was given to me by a friend

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting? tap water sitting 48 hours in an open bottle to evaporate chloride
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...) aquarium test kit
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...) phosphoric acid
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. BioBizz, Bio-Heaven, Bio-Grow, Bio-Bloom, TopMax, according to their schedule. currently at max quantity
14) How often are you watering between feedings, and how much per watering? 1 feeding every week, 1 watering between feeding, 2liters each
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...) none
16) Are your ph levels stable, or do they fluctuate? don't know, i think stable
17) What is your ingoing water's ph? ...your runoff ph? 6.5-7
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? no

Your growroom:
19) Indoors or outdoors? indoors
20) What size of closet, room or hut? 50cm wide, 60cm deep, 110cm high
21) What are the temps and humidity levels while lights are on? ...With lights off? lights on: between 30c-32c humidity 40%-50%, lights off 25c-27c 50%-65%
22) Have you seen signs of insects in the growroom? had spider-mites, used neem guard

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?) Bubblelicious
24) From seeds or clones? clone
25) Is this an autoflower strain? no


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You need this pimp----> Cal-Mag | Botanicare

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you think this is some kind of deficiency? not some kind of stress?

Doubt it is cal/mag. He is using tap water. No need to let it sit out tho. I'm concerned with u using the aquarium ph test kit. The color of the food will alter the results. Found this out the hard way. Get a ph pen for accurate results.

you should check your trichomes to see how close you are to harvest. they may just be finishing up and using the rest of the nutrients which is a good thing, much cleaner better tasting smoke later. nice looking plant/s.