Welcome to UK420

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more!

This message will be removed once you have signed in.

Search the Community: Showing results for tags 'enviroment'.

More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • Welcome to UK420
    • New Members
  • Cultivation
    • Strain Base
    • Breeders Help Desks
    • Compost and Pots
    • Hydroponics
    • Outdoor Growing
    • Propagation, Cloning and Mother Plants
    • Auto Flowering
    • Growroom Design
    • Problem Solver
    • Harvesting and Processing
    • Grow Diaries
    • Cream Of The Crop
  • Cannabis Culture
    • News, Views and Politics
    • Medicinal Cannabis
    • Smokers Lounge
    • Uk420 Competitions
  • Sponsor Support
    • One Tree Horticulture
    • Intense Nutrients
    • Vapefiend - The Vaporizer Specialists
    • Ledgrowlights.co.uk (diyleduk)


  • Community Calendar

Found 5 results

  1. Hello everyone! I hope you are all well and nicely stoned! I have been having a list of never ending problems that i am just starting to get past but just cant quite clear the end of it. A short time ago i done built a whole new grow room out of wood. The idea was to make the most of my spare space and improve some of my equipment. For those of you interested in knowing more about the spec just check this link and you will get the run down... https://www.uk420.com/boards/index.php?showtopic=372839&hl= To start with i did have some clones that i had vegged up and put in the new box under the new CMH lighting. They were quite healthy to begin with but the did need a pot up but nothing major... Its worth mentioning that in the same room i have 2 tents with plants in with no problems. One mother tent with no real problems, and a 60cm squre tent with a 150w mh. Both no problems. I vegged them up for about 4 weeks or so and they had barley grown. They hated the environment. I also had really bad problems with fungus gnats and i put the problems down to that as it was really bad and nothing worked in getting rid of them. I used gnat off, multitude of sprays, smoke bombs, and gnat nix (recycled ground glass on top 4” of pot to stop them reproducing). Nothing made a blind bit of difference, i even let the pots dry out to the point they nearly started to wilt before i watered to stop the larvae. No hope so i decided to let the plants die in the pot as they were clearly not going to produce anything worth the time judging by the 3” growth in about 4 weeks. After they all died in their pots i cleared out my growing space and sprayed everything down with multiple pesticides about 4 times, let of smoke bombs daily for about a week and half. Ok i chalked them up to the fungus gnats which i thought was funny as they aren’t the most harmful pests but i had a lot of them. In the mean time i had started some seeds as i wanted to do some pheno hunting and hopefully find a stud male. I cracked 10 x Yeti OG F3 from loompa farms and 5 white OG from karma genetics. They were going with no problem or hiccup in the 60cm tent under the 150 MH. I eventually repotted them and put them in the wooden box under the CMH bulbs... After about a day they had all drooped heavily and looked like they were on their way out. I thought it might be the light intensity as temps were fine so i turned one of the CMH bulbs off and checked regularly. Temps stayed fine but still, no joy as they just got worse if anything. They had stayed droopy as fuck and started loosing colour from the bottom upwards for about 4 days before i decided to see what would happen if i put them under normal MH lighting as that was the biggest change from their previous environment in which they were flourishing and healthy. I put in a normal 400W mh light and went to work. I cam back 8 hours later to find all my plants not drooping and looking about 60% better. I was and still am puzzled as to why this is was, but i was just happy to see i still had plants that could recover and i could still have a decent phenol hunt. Thought i was out of the woods but the gnats managed to come back but have so far not been as bad as before and i have been adding liquid oxy /oxy plus and gnat off to the water to hopefully kill any larvae. Any way the plants started to droop again i noticed so i got chatting to a few good pals that also grow as i was growing tired and hoped a fresh eye to the situation would help... it did as they got me to check my humidity and it was low at around 25% and in all my other tents it was about 40% - 45%. I got a large bowl of water and left out and the humidity rose to around 30% and the next day they had started to go back to normal. Since then i have brought 2 humidifiers to run in there during lights on to raise humidity, they work and the plants are mostly happy and all new growth looks good on most of them, a couple look a little rough still but nothing to far gone. I am also going to line the box with plastic silver or white sheeting to hopefully stop the wood drawing too much humidity out of the air. Now the thing i need your help on is the fact i have noticed that my plants are still drooping in the last 3-4 hours of their day and i cant work out why as the next morning after their 6hrs darkness they are all perked back up and look healthy. But they look like shit for the last few hours. I have just potted up 10 Sour Power OG from karma genetics and put in the environment a day or 2 ago now and these plants don’t droop in the last few hours of the day as you will be able to see in the pictures. Any suggestions on why this is or what is causing it. All plants are in hand watered coco, and under 2 x 400w MH lights with lights on tmeps around 25c-27c. Any advice on plant drooping, humidity, gnat management would be great as these are all new problems from me. Thanks in advanced for reading and trying to help with my problems, i know it was a long read and appreciate any and all help as i just need things to get back on track as i have run out of bud a good while ago and don’t want to waste any more time, electricity or plants. Manny Thanks Fatcalyx
  2. Evening all think its over three years since been active on here but once again, I'm back and hoping to be active in a month or so, if you know what i mean But I've just found this and wondering if anyone had heard of it?? https://edyn.com/ it's an all in one sensor that pairs to your phone and sends temp nutrient levels water levels. Granted you'd need One per plant. With being a loft grower and disabled i reckon it would save me having to go in the loft everyday to check levels. I know it might not be too everyone's taste or style, but i was impressed even though im waiting for the robot who could grow it for me
  3. Hi guys, i just wanted to introduce myself and my ongoing project. I know a lot of people will want to follow my progress with this and i’m pretty sure i’ll need some contributors before the end of this project. I’ve read a few other threads here and there but not seen any that have actually gone somewhere and produced any results although some are ongoing and look rather promising. So i’m going to take the time to let you all know what I’m up to and what i want to achieve so that anyone else who is interested can join in and reap the benefits. This project was born out of a frustrating lack of control systems that operate on a day and night basis as well as controlling heaters and extraction fans. I’m not even aware of a commercially produced system that performs this job under £1000. I know how important it is to have a controlled night time drop in temperatures so why doesn't anyone cater for this? I plan to use a raspberry pi as my main controller. The basic requirements i’m looking to achieve with my project are; Lighting control Separate night and day temperature settings Separate night and day humidity settings Must have full and independent and automatic control over extraction, heaters and humidity foggers All data must be fully logged Full web interface for controls and monitors LCD screen readouts and basic settings control on the unit itself At the minute i’m in the ‘proof of concept stage’. I’m buying components bit by bit and proving to myself that what i have in my head will transfer to practice. For example how do you get a raspberry pi to record a temperature? Or how do i measure the moisture level of the soil? These are the questions that need answers before even thinking about putting the whole thing together. Then when each of these all work i can start to buy everything i need to build the system and start on the main code. The next few posts will explain the steps I've been through already.
  4. Hi Guys, I just wanted to show you a micro box with full temperature control i built for a friend of mine. You can set night and day temperatures. It has a heater matt in the bottom, a carbon filter and has been through a full grow already and it worked great! The carbon filter works perfectly. I’ve fitted a rather big LED light for the size of the box. There are some pictures below of the build along with a circuit diagram for the electronics if anyone wants to build one. Not got any pictures yet of it in use from him yet but i’ll get them up asap. Circuit Diagram: Pictures:
  5. hi all this is my first post/topic and grow so please bear with my ignorance ,I am trying without much success to control the temps in my growroom which is a 4x4ft curtained off section of an 8x10ft room,i have to keep switching off my extraction(5" with rhino carbon filter) because the temps get down as low as 14 at night, the nutrient tank is the only thing that keeps the temps at that level as it remains at a steady enough 16-19degs,what I am trying to find is a digital thermostat with timer so I can set an electric heater to heat to 25degs during lights on and about 16degs at night/lights out,i have scoured the net without any succsess so I hope you good people can help.