heat

  1. C

    Need help with dying plants

    Hey guys, So this is my second time growing ever and I've ran into a lot of problems recently. I have two plants and a clone together in a 24x24 growtent in coco. Rn I'm using cfl's but when I started i was using a 1000W LED (actually about 180W). I figured the light would be to big but I...
  2. pulpoinspace

    Picking a heat sink for DIY Grow

    First of all, apologies for a duplicate thread. I used the search function and looked for the past hour and I can't find (too stupid to recognize) an answer to my question. Any help or simply a link to something where I could find the answer would be GREATLY APPRECIATED. Also my body is ready if...
  3. Sheldon92

    What's wrong with my baby?

    Slowly getting worse. Her neighboring sisters are fine. Having AC problems, so temp around 30C lately. Skywalker OG, from seed FFOF soil Fed very little nutes a while back once, watering every other day or 2 I think either heat or too little watering. Thanks!
  4. vanslyke

    LED compatible?

    hey gang, I’ve got a 2x2x5.5 foot tent with a 200w cfl running in er. I’ve got one inline fan running fresh air into the tent and a circulating fan inside for air flow. Is a tent this small usable with LED’s or should I just continue running the CFL? I’m just worried about an LED getting too...
  5. Green Gnome

    Tropical Climate Indoor Grow- How to Beat the Heat?

    Hail Friends, I live in a tropical country where part of the year the temperatures get into the high 90's F and the humidity can reach 85%. The natives grow outdoors, it is sadly not an option for me. Therefore I am doing an indoor stealth 'closet' grow in a big wooden wardrobe. The grow...
  6. R

    Still some slight foxtailing? pics..

    Posted couple pictures a week back about some foxtailing I had, I'm 8.5 weeks into a 9-10 week flower strain. I was told to flush with plain ph'd water and decided that because I am near the end of flower i would just continue to flush till the end. so until this point they have had 9 days on...
  7. DesertPlants

    Help choosing between two fan drivers.

    Good evening. I am building a COB light and I have active cooling for the fans. I am using four Arctic Alpine 64 Plus coolers. Each one pulls .25A. Currently I have this LEDMO Switching Converter ordered. I am now considering ordering a Mean Well APV-16-12, but am not sure if I need to or...
  8. S

    Plants wilting hours after watering

    My outdoor plants are around three feet tall and in five gallon smart pots. I've been watering them twice per day, but recently it hasn't been enough. They are bone dry and wilting less than five hours after watering them. I'm watering them until there's 20% runoff, but they just dry out so fast...
  9. B

    Wondering if I should use cfls over hps?

    So i have a small grow tent 2ftx4ft with one plant, and im currently using 150 watt hps with 200 watt cfls on each side of the plant. Its to hot in the grow tent and cant give it much more venitlation due to its location besides the fans i have in it already. So should i just use the cfls next...
  10. L

    CFL bulb heat problem

    Hi everyone, I'm about to start my first grow and have just finished building a small grow box which is now in my attic. Whilst testing it out last night, I noticed that the bulbs and bulb sockets became very hot. I have two bulb sockets in the box, each one with a Y splitter with two 30w CFL...
  11. TEC09

    2 weeks in flower w/ a few issues

    Issue #1 is her size. I have tied her down but still she rises! I am seeing stretch and she's only been in flower 2 weeks. When will she focus on buds and stop growing? Can I top her topmost tops? or could that stress cause her to herm? Issue #2 is she is dropping leaves. She has some leaves...
  12. D

    Temperature issues

    I recently started some seedlings and I'm trying to figure out the lighting. The house I just moved into the ac is not the best. I'm getting 75 to 80 degrees with four t8 32 watt lights. I usually run a 600w hps in a 4 x 4 tent but i feel with the temperatures I'm at with the hps the heat will...
  13. C

    led light question

    Hey everyone, I would like to ask something. II am growing 4 autoflowers in a 500xmm by 1 metre high tent with a meizhi 600w led, do you guys thing that that is too much light for sucha small space, and to use from seedling to fiinish? I also have a 300q mars hydro led and dont know whether to...
  14. R

    next step for bud development w/ hi heat & low humid conditions

    Help I am constrained by High heat and low humidity - live in the desert I vegged 6 large on a MH 500w then to 750W & switched to LED to flower ( too much heat to run a 1000w HPS) vegged well in 7weeks in these conditions. Conditions around 78 to 82 in tent humidity 22 percent max MH 500w...
  15. xX_BHMC_Xx

    Heatsink USA Calculator

    Hey RIU, I stole Supra's HSUSA table format and made it a bit... sexier. Also, added some functionality to help those of us that use this style of heat sink. This calculator should help you decide what profile to pick if you are considering this route. I'm no expert, and I would love someone...
  16. Juddy Rotten

    Mars 600w causing alot of heat!

    Ive switched up my set up and am now running mars 600w led panel. Love the light love what i see but damn does it get hot! Had in a 2x2 tent at first and will never do that again. Now in 39x39x70 my only question is how close can i run this bad boy from my cannopy? All advice is welcome and...
  17. dave_jam

    Is this light or nute burn?

    I added a couple more lights right before this happened; then again, I started using a brand new nutrient solution right before as well.. Thx in advance guys
  18. jswett1100

    Heater + carbon filter how to move around heat?

    Ive got a decent size room, i have to use a heater because its cold around this time and i have a 6 in carbon filter and its going into the veg room which is in the same room. where do i put the outlet of the carbon filter so that i maximize keeping heat granted it can only be a short term solution.
  19. MaloMAL

    Recommendation,Heat REDUCTION 2x inline FANS or 1 ¿ grow Closet: 220 CFM 6x4.5x7.75

    I am looking into the Apollo horticulture 6in. 440 CFM inline duct fan and Hyperfan 6in. 315 CFM Digital mixed flow fan. I am trying to reduce the heat being concentrated by my 150HPS mini sunburst. I have 2x mini sunburst set and the closet rises as high as 91F. When this happens I pop the...
  20. esh dov ets

    temps in 80s pH in 7 range

    Day time temps 82 - 88 Night low 70s Soil pH 7 Water phed with organic up n down to 5 What's my question? What do you think of this? Will it slow growth? Is it higher pH on veg lower on bloom or the other way around. (It exists) I have fans going. Everything else should be good. in my...
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