First grow, autoflower issues...

[Sobekobe]

I've been lurking here for a while and need some help on my first plant. My concern is some yellowing/ bleached tips/ brown tips/ curled tips, etc... The pictures can explain it better than I can. Here's the info and pics.

SOIL:

How long has this problem been going on? 2-3 weeks.
What STRAIN are you growing? White Russian - Autoflower (lowlife seeds)
What was the establishing technique? Seed
What is the age of your plants? Plant is 65 days old. (flowering 40 days)
How long have they been in the soil mixture they are in now? Since day one.
How Tall are the plants? Around 9 inches haha.
What PHASE (seedling, vegetative or flower) are the plants in? Flowering
What Technique are you using? Regular (no training)
What size pots are you using? 3 liter pot.
What substrate/medium are you using? What brand of soil mixture are you using? Foxfarm Ocean Forest, 20% perlite.
What Nutrient's are you using? Fox Farm big bloom. (Started 3 weeks into flowering, Nutrients arrived very late causing a large amount of leaf yellowing and loss. Looked like nitrogen def.)
How much of each nutrient are you using with how much water? Half strength.
How often are you feeding? Every other watering period.
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? Nutrients and then PH balance. Switched over 3 weeks into flowering.
What is the TDS/EC/PPM of your nutrients used? Unknown?
What is the pH of the "RUN-OFF"? Tested once. 6.6
What method of pH test was administered? Using Strips? pH pen? Aquarium tester/Pool tester.
How often are you watering? Once every 3 days.
When was your last feeding and how often are you feeding? Yesterday/9-16
What size bulb are you using? 6 bulb florescent set up, 23w2700k(3) and 26w6500k(3)
What is the distance to the canopy? 1-2 inches (Light cycle are on 24/7)
What is your RH Factor? average 45%
What is the canopy temperature? 78-82 degrees Fahrenheit
What is the Day/Night Temp? Night 75F? day 80 (Indoor, in cabinet, not much fluctuation)
What is the current Air Flow? uhh 9 inch exhaust fan on high, lots of air.
Tell us about your ventilation, intake exhaust and when its running and not running ? Intake is passive ie. theres a big hole in the wall.
Is the fan blowing directly at plants? Yes (smaller interior plant. lower speed.)
Is the grow substrate constantly wet or moist? No.
Is your water HARD or SOFT? Distilled.
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? Distilled, PH balanced.
Are you using water from a water softener? No.
Has plant been recently pruned, cloned or pinched? No.
Have any pest chemicals been used? If so what and when? None.
Are plant's infected with pest's? No.

 

[Sobekobe]

 

[MynameStitch]

You got a nitrogen deficiency, the purple is color changing which is fine, makes the plant look pretty.
Most of the time you need cooler night time temps, but many strains change there colors middle flowering or towards the end, by themselves without any environmental changes.

You are are using half strength, 1 tsp per gallon of water?
You have a nitrogen deficiency, which happens this late into flowering.....

I would try removing them from the 24/0 schdule, plants don't take in light 24 hours, they take in only so much and stop until later on.

I always took my plants to a schdule that would mimic outdoor growing, start out for 2 weeks with 24/0 and then 18/6 and then 12/12

PLants need downtimes, it looks as if your fluros slightly bleached the top leaves, if you have a lot of light per sq feet of space, weather you use any lighting, they can get a bleach affect. What sq feet of space is your grow room? With the brown you are talking about, it looks like the brown patches are actually purple and end up mixing with the yellowing making it look like it's brown that is what it seems like..... also the brown you are speaking off on certain parts is what is left over after the nitrogen deficiency has taken over the leaves, it's dead plant tissue. If it's getting ready to fall off, remove it, you don't want dead leaves staying on the plant. Have you grown this strain before? The buds do not look no where near like 40 days.......

 

[Sobekobe]

Thanks for the fast reply Stitch. Yes the 1 tsp per gallon is correct, unfortunately I wasn't able to add the nutrients until 13 days after I noticed the plant needed it due to a mistake up in shipping.

How should I go about changing the light cycle this late? I've heard varying opinions about light cycle for auto-flowers, so what is and good cycle?

The grow room/cabinet is about 8.5 square ft with a ceiling height of 3 ft. Plant is around a foot and a half away from the ceiling.

Good to know about the dead leaves, I'll remove them right away. Haven't grown this strain before, because this is my first plant ever! haha. At this point I'm not expecting much bud at all, so hopefully I can just harvest some more seeds and start fresh. (forgot to mention I pollinated it with a male...)

 

[MynameStitch]

You can have any lighting change you want too with auto flowering strains, they choose when to flower. There is a lot of advice and controversial about lighting schedules with auto flowering strains, from what I have noticed keeping lighting on 24/0 is a waste, plants have a downtime, where they photosynthesis up to a point and after that, they rest; they won't take in any more light until they need it later on.

The schdule you want to pick is up to you, I would try 18/6 or 12/12

For 40 days those buds are supposed to be bigger, I know your using fluros and so forth, but there should still be some more weight on them. Not sure if your lighting has something to do with it or not, but I am sure it has at least a little bit got to do with the lighting. Another big thing why the buds are not big, is because you seeded her, plants will put forth energy in producing mature seeds than producing buds,this is the biggest part as to why your buds are not as big.



if you want to try a lighting change; Try 18/6 first....... With how far into flowering you are, you don't have a lot of chances to increase your buds, due to it being seeded, and if you let a strain over flower the tricomes can lose potency..