Search results

Thanks for the advice. Right after I read your post I went and direct planted another seed in each PB18. There are 24 of them and the one in the photo was the worst looking one. the others are quite a bit better. the new seeds will take 5 days to get to an inch high, so if the problem plants...

sorry correction there, i got 7000 seeds off 4 mother plants and have 6000 approx left. did a big grow of 1000 in a 200sqm outdoor area. if you find an auto strain you like get 5 seeds germinated in a tent and spray the shit out of one of the plants with colloidal silver starting as soon as you...

I am in soil, and as another member just mentioned the soil does have quite a bit of woody mulch in it which might be consuming N as it breaks down? No soil amendments The manufacturer has a feed rate sheet somewhere which includes soil, I checked it out as I used to grow in straight coco and...

I was wondering about that, the soil has quite a bit of woody mulch in it. I'll up the nitrogen booster and feed full strength again today and see what happens.

hey thanks for your reply. so I thought along the same lines initially, just looked like it was very light on nitrogen. I grew the last run of this same strain on half strength nutes just because they're autos and all was well. the first thing I did when these started to go pale was up the nute...

Hi all, I have recently switched to autoflowers and I am having some problems. I am growing in soil using half strength nutes and feeding at PH 6 to PH 6.5 and the soil PH is about 6.5-7.0. The same conditions work perfectly with my critical kush which is in a room next door and looking...

I couldn't say exactly what size room you could treat, as I don't know what the minimum concentration of co2 in the general body of air would work. On the few occasions I have had to do it I've aimed for 100% co2. So you would find out how much co2 gas weighs per m3, multiply by the internal...

if you can seal the grow space reasonably well use a pound of dry ice and a bucket of hot water. dump the dry ice in the bucket of water and shut the grow space up for a couple hours, leaving circulation fans on. every non soil dwelling insect will die. do that once a week for 3 weeks to ensure...

You can drive samsung lm301b chips at 200% of rated current without damaging them if you heatsink properly and they will produce quite a bit of heat. they are rated to operate at 85 degrees C. I have the same problem, in winter I just raise the light frames up and overdrive them - sometimes it's...

https://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SI-B8U201B20US/1510-2290-ND/7562248 These are for you if you want to build completely from scratch. with quantum boards a lot of the work is done for you. the strips from samsung (via digikey) work out about half the price of QBs

they would be the best option, at least judging by the spectral analysis, if you could get them. they seem to be as rare as rocking horse shit.

Go for 4000K if you can get them. I use 4000K samsung strips with the lm302b in my DIY led setups (same as the quantum boards), I can't say how they compare to the 3000K lm302b chips as I have run 4000K from the start however the 4000K works well for me - I've also heard a few people who got...

forget the cheapo lux meter. my understanding (which may be wrong) is those things aren't meant for leds, as the leds we use have so little green in them you need a PAR meter, which puts more value on the blue and red than the green it detects and spits out a more accurate value in PAR watts...

Yeah nah sorry matey sounded like I trolled you a bit there. forgot to add the winky smiley face at the end or something. It's my job to pay you out, says so in the first line of the national anthem. Rest assured my comment was made with tongue firmly implanted in cheek and dick firmly implanted...

I figured it wouldn't be long till you poked your sarcastic, pessimistic nose in on a thread like this skippy. Took you longer than I expected. Flat out trying to figure out how to get all the spare water from the top of the country down to put out the fire at the bottom of the country I assume.

I've got a lux meter, but to be honest I don't think it's even worth using given how little green there is in the 4000K lm301b. I'd love a PAR meter but it's one of those things I would pay a fortune for, use once or twice till I could accurately estimate the energy at the canopy and not use...

It's a weapon that thing. It's a DPS5020. 60 volts max input and runs up to 20A. so it's good for 1200W on paper, about 1000W in reality. I was considering getting just one and driving two of these rigs with it but decided as they are not very expensive to get one for every rig (I've built two...

I run a 9000btu portable unit outside the room. the cool air from the portable unit is pointed directly into the doorway and passes across a 10g/hr ozone generator. the hot air from the AC condenser is ducted into the roof space. the air from the grow room is extracted with a carbon filter and a...

Yeah totally, I'm not paying you out about it bro. When I lived in Brisbane I used to get all sorts of shit mailed in. Moved back to NZ a few years ago and found they Xray everything coming in from certain countries, and from my experience a few seeds mixed in with a jar of similar sized plastic...

All good, I appreciate as much info as possible on this and it really helped. I've been chasing deficiencies for a couple weeks too and I can't pin it down. I've attached a few photos of the setup, you'll see there is a microcontroller running the constant current power supply, I turned the...