What is your experience level? (first timer, novice, experienced...)1st timer

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)600w HPS
.2) Distance from tops? 1-2.5 ft
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)enclosed air cooled reflectors
.4) Is there a consistent fresh air supply?Yes
.5) Do you have an exhaust fan and a circulation fan?Yes
.6) What are the bulb wattages, kelvin ratings, and schedule?12/12

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...)Fox Farm Ocean Forest
.8) Size of container.Approx 3 gallon rose pots
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings?Rockwool cubes

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting?Tap water ph 7-7.2
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...)Pen
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)ph down
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. Age old Grow is 12-6-6, Bloom is 5-10-5 bat guano is .01-.10-.01 as percentage
14) How often are you watering between feedings, and how much per watering? I check the medium w/ a meter and water accordingly. usually every two or three days about16 oz per plant.
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)liquid bat guano
16) Are your ph levels stable, or do they fluctuate? pretty stable
17) What is your ingoing water's ph? ...your runoff ph? Tap water at 7-7.2, runoff at 6.4 this morning, plants were fed 3 days ago. Runoff ppm @ 900 thyis am
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?10x11
21) What are the temps and humidity levels while lights are on? ...With lights off?Max temp currently 75ish, minimum 58-60.
22) Have you seen signs of insects in the growroom?Have had a few mites, they are checked and sprayed with neem oil or Organicide(mostly fish oil)regularly.

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

I tried to get some input on this issue in the indoor growing section and got only one response, so here goes. The plant pictured has been in flower for 3 weeks today. I know that it is normal for the fan leaves to yellow at some point in flowering, but I want to make sure this isn't too early. The plants otherwise seem healthy, and trichomes have been developing on the flowers and surrounding leaves for about a week. I would greatly appreciate any input, as I'd hate to get this far only to screw it up. Thanks everyone.
senorx12562 Reviewed by senorx12562 on . Fan Leaves yellowing and browning 3 wks into flowering What is your experience level? (first timer, novice, experienced...)1st timer Your Equipment: .1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)600w HPS .2) Distance from tops? 1-2.5 ft .3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)enclosed air cooled reflectors .4) Is there a consistent fresh air supply?Yes .5) Do you have an exhaust fan and a circulation fan?Yes .6) What are the bulb wattages, kelvin ratings, and Rating: 5