Various issues! Deficiencies,Heat stress,gnats. Some advice plz? *pics & TSform*

Hey everybody, this is my 1st post and I wanna make it as easy as possible for people tryin to help me. So if I missed anything please ask and ill get on it.

I’ve had these problems a lil while but had no camera so thought best wait till I got one.

I am guessing that I have a Nitrogen and Phosphorous problem, however I had (and think I still have) a gnat/blackfly problem, as well as rouge temperatures reeking havoc for a while which may be confusing me?

I don’t wanna assume it’s a deficiency and then go and burn the shit out of em with nutes, so if anyone would mind shedding some light on the situation and how to remedy it I’d be grateful!

I will be re-potting soon. Go me.

I started the 4 big ones around mid July, and the others a few weeks later… Slow growth as far as I can tell.

I also had a few die on me, bummer, but expected. I looked everywhere and couldn’t find anything that looked like this though, anyone know? They are the pics of the little dead and withered ones, happened very quickly also.



My Nevilles Haze leaf growth is all twisted up it seems, what do you think?


There is a troubleshooting form in the next post, that should help shed some light on things.

Thanks in advance for the help, and to everyone that contributed to the vast library of info on the site! Stackin paper to the ceilin, bangin bitches without rubber and ridin on 24” chrome

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What is your experience level? (first timer, but did a LOAD of research over the last few years)

Your Equipment:
.1) Type and wattage of lights: 400w HPS, (Started of with CFL's)
.2) Distance from tops? Generally 35 CM away, but I move it around a lot (usually depending on temps)
.3) Reflector type? Standard ‘upside-down U’ (I forgot the name of it)
.4) Is there a consistent fresh air supply? The room that my grow room is in, always has the window open, 1 of my 2 extraction fans is on 24hrs, other corresponds with light cycle
.5) Do you have an exhaust fan and a circulation fan? Yes, 2 85m3 (23 litres per second) 4” shower extractor fans. And 2 circulating fans, 1 small, 1 big.
.6) What are the bulb wattages, Kelvin ratings, and schedule? 400w, currently 18/6 veg, starts at bout 3am off at bout 9am I do believe.

Your medium:
.7) Specific brand and type of soil: Using ‘West + Peat free multi purpose compost’ (re-potting soon and willing to change if need be!) Added some vermiculite & perlite (no specific ratios)
. Size of container. Don’t know exactly what they are in (look at pics), but they will be goin into 12 ltr square pots soon
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? Yea, coco pellets (orange pots) and rockwool cubes (white cups)

Your nutrients and water:
10) Source of water? Tap water What's it's ph before adjusting? Roughly 8.5 I’d say?
11) Method of checking water ph. The bottle of solution, bought in grow shop (pic of it)
12) Method of adjusting water ph. Was using white vinegar, now using organic Ph down
13) Specific brand and N-P-K ratio for each bottle. Bio Grow (2-6-3.5): using 1ml per litre. current feeding schedule. I feed roughly every 3-4 days when I water, when I started I may have been watering too frequently, but that was before I was feeding.
14) How often are you watering between feedings, and how much per watering? I don’t really water between feedings, maybe I should be? When my problems started I began flushing. And any time I water/feed, I will pass a lot of nutrient water through (kinda flushing each time)
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...) Nope, not yet anyways.
16) Are your ph levels stable, or do they fluctuate? They must be fluctuating as im using the test bottle that’s not very accurate. Id say this is the cause of some of my problems! Im getting a ph meter soon though.
17) What is your ingoing water's ph? Roughly between 6 & 6.8 im guessing, once its near the colours id generally leave it as when I fucked with it, it would go into the red! ...your runoff ph? Most times that I tested, it wasn’t TOO far off from what was going in, maybe due to the regular flush?
1 Do you foliar feed? If so, with what, how often, and at what time do you spray? No, but I did tobacco & chilli spray due to Gnat problem.

Your growroom:
19) Indoors or outdoors? Indoor closet type.
20) What size of closet, room or hut? Bout 1m X 1m X 1.2…. So roughly 4ft X 4ft X 6ft
21) What are the temps and humidity levels while lights are on? Some rocky temps at the start, but now its stay between 27c-29c (ive gotten some HIGH maxes at around 37c-39c but don’t know for how long etc...With lights off? Using a heater I tried to keep it round 24ish, but would bottom out mostly at 22-23c (got some low spikes also tho, a cause of my problems no doubt)
22) Have you seen signs of insects in the growroom? YES! Little gnat cock suckers, or blackfly.. I think they are all the same. Think I now have under control as I used ‘Neem repel’ (see pics) was using the chilli, garlic pepper mix aswell as the tobacco tea before to keep em controlled. Now have fly trap paper In there too.

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?) 4 sativa (Arjan’s haze #1, Arjan’s strawberry Haze, Nevilles Haze, Super silver haze) 1 of each. And then 7 white widow.
24) From seeds or clones? Seeds
25) Is this an autoflower strain? No

Looks overwatered

Looks like overwatering and nute burn. You shouldn't feed every time you water. Feed every other time. Let them dry out and just feed water for a while.

Yeah all the above, let them dry way way out, then plain water only.
Get rid of the gnats, the larvae eat on the roots and promote disease, they can kill young ones.
Sand about 1" thick on top of the soil will smother the eggs and young and any adults playing in there,
and in about a week they should be gone, just kill the adults, they feed on your plant as well.
Welcome to RIU and thanks for giving such good details, most noobs don't give any info at all.

Yeah all the above, let them dry way way out, then plain water only.

--I have repot them, which meant that i gave a quick watering before and after the transplant.. gave them a draining and now dont plan on goin near em for about a week!

Get rid of the gnats, the larvae eat on the roots and promote disease, they can kill young ones.

---I used some neem repel a while back, hopefully that killed em off (i still see some in there but not many).

Sand about 1" thick on top of the soil will smother the eggs and young and any adults playing in there,
and in about a week they should be gone, just kill the adults, they feed on your plant as well.

---But as for the sand... what type exactly should i go for, or even avoid. i hear alot about sand but never what type :s

Welcome to RIU and thanks for giving such good details, most noobs don't give any info at all.

---Thanks buddy, i appreciate that! And thanks for taking the time to reply

how is your strawberry haze going, thinking about tryin this one my self in my little grow box, 2x2x4 with 400 w hps with 2 fans. got bagseed growing now,until I can make up my mind on which type of seeds to buy but i like fruity taste.

bigger pots..
=]