and what does it mean to tag a conversation
I mean bookmark
What do you mean by bottom feed??
Bookmarks let you have a quick link to threads you are following.
On other plants ( like jade ) you put pot in bowl and let water soak up from so as not to disturb first sprout by watering on soil. also theroy is watering from bottem causes roots to seek out water growing down. Just rambling here. Iâll just be more careful . Thanks again for your help. Sort of a worry wart ya know
No, donât bottom feed cannabis plants, they donât like it and the salts stay in the bottom of the pot. Also, your plans are too small for watering to runoff, so theyâre a little overwatered for now, thatâs why theyâre drooping. Let them dry out before you water again.
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ok really appreciate all ur help, have a great xmas to all. later
Hi again, lookin for some info on lighting. Using CFL now, have setup in my tent ( 3â by 2â ) that produces about 35000 lumens. I can raise them up and down as needed. Have problems with heat thou. Have been reading about HID and HPS. Bible says HPS is best but donât know how much or many. Cheapest one says 38000 lumens. and has HPS and HID bulb and is 19" by 19" , just seems small. And do they produce a lot of heat, says has cooling fan. They come bigger of course. you think this is enough for my tent or bigger. Your thoughts would be appreciated. Thanks again
Yes, they produce a lot of heat, so if youâve got a heat issue with CFLs then youâre gonna have a big heat issue with HPS. I would recommend LED if youâre looking to upgrade, but iâm no expert on lighting. This man @dbrn32 will steer you in the right direction.
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How big of a cfl is that? Most of them are about 70 lumens per watt, a t5 will run usually around 90 lumens per watt or so.
Either way, your best bet to combat heat will be to get some power out of there or go with an air cooled hid setup. The biggest issue youâll run into is finding a lot specifically designed for your space. Iâve helped a couple of members build custom lights using leds that are in the neighborhood of 180 lumens per watt. That would allow you to maintain same light levels with less power, which will in turn be less heat. Itâs not terribly difficult to do if youâre interested. Otherwise the off the shelf systems would either require you to buy two smaller lights or a light thatâs a little bigger than you need with dimming feature.
Hid alternative would be air cooled 400 watt.
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Hi again. Had that droopy leaves thing week ago. Turns out it was watering. The pots were not right. would go bone dry over night etc. Repottted with fox farm soil. Pic is today. Have three questions. 1st what stage is this at? 2nd have read about humidity levels at different stages. Explains that at first needs high. ( keeping at 50% + / - now ). later high could damage plant. Saw a chart showing levels at different stages, thought I saw it here in a message from Bob right after purchase, you know where to find it. 3rd We spoke about lighting and finally staying with cfl. Worked good before on last plant. Used lots of fans, but seedling stage a problem. donât understand all that spectrum, lux, etc. just went for lumens. Can produce 38,400 daylight bulbs. Found a lamp that seems to be excellent. LED and virtually cool to touch. Could you look at these specs and give opinion. Wonder if I should go with these for whole grow but donât know how many I might need. Any thoughts would be appreciated. Thanks again for all your help
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Your plant is just entering veg stage, just past seedling. Here is the chart:
And @dbrn32 can look at that light.
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Light you posted info on is what you would use to start a seedling or light s small clone dome. You just need to keep it close.
Iâm not sure what youâre trying to say there? A bulb will have a cct like 5000k and be called daylight spectrum. Are you saying you have 38,000 lumens of that? Thatâs something like 800 watts of cflâs.
Hi, lumens ( flux ) is amount of light emitted and spread more or less. These cfls are white to me but philips company calls it blue light. Light spectrum is 6500K per bulb. so 156,000. Can raise groups up and down as it grows. Was just researching different types of lighting. Make it easier to control heat ya know. The LED are great for seedling cause they solve distance from plant having virtually no heat
Thanks for chart, just what I needed.
Iâm very aware of what luminous flux is. But your bulbs being 6500k has absolutely nothing to do with the flux.
Do you have a pic of any of this data? Iâm just trying to help you out, but none of the numbers youâre giving me are making much sense.
For instance. If you have a 10 watt 600 lumen cfl in 6500k, it doesnât matter if you have 1 or 100, the cct is 6500k.
Sure, I didnât mean anything like that. Iâm was trying to understand myself ya know. When I put tent together,
I just went for lots of light. Hereâs a couple of pics
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So it appears you have 24 bulbs there. If all are 23 watts, thatâs 552 watts and theyâre running about 70 lumens per watt. If you want the same light levels with less heat, all you need to do is get into more efficient lights. A 400 watt t5 fixture will get you there and be like a 25% reduction in energy. A 315 cmh will get you there and be even more reduction. If you had a good led fixture, you could get there with a little over 200 watts.
The energy is the heat. You reduce the energy youâll reduce the heat. Itâs just a matter of how much and what youâre willing to give up to get there.
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I see now. Was looking at fluorescent first but they were to big for tent. I will look at different types of bulbs with info in hand. Didnât have much in LED when I put this together. How do you know how much light you need. Also is what i have sufficient?
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