just wondering guys how close should I put my t5 above my sprouts in small pots ive heard on other sites u can get them has close has 4 inches just wanted to be sure it doesn't bother my sprouts and my thermometer where is the best place to put this cus I'm thinking I'm getting faulse reading under the light so should I hang it in a shaded spot
T5
- Thread starter West123
- Start date
HydroRed
Well-Known Member
Patience my friend!
You can get the light pretty close to your sprouts with t5's. If they are h.o's maybe an inch or 2 further away than regular t5's. I'd put them about 8 inches away and see how they respond. If you notice they are getting too stretchy and tall, then move the light a bit closer until you notice the stretch subside and the plants let you know they are happy. "Damage" is less likely to occour from being too far rather than being too close.
Welcome to RIU!
You can get the light pretty close to your sprouts with t5's. If they are h.o's maybe an inch or 2 further away than regular t5's. I'd put them about 8 inches away and see how they respond. If you notice they are getting too stretchy and tall, then move the light a bit closer until you notice the stretch subside and the plants let you know they are happy. "Damage" is less likely to occour from being too far rather than being too close.
Welcome to RIU!
Evil-Mobo
Well-Known Member
Can you provide us more info? What fixture? What Bulbs etc.....? This will help us help you. Example I have a 2 foot T5 Sunblaze brand that came with 6500K bulbs, these bulbs and this fixture runs HOTTER than my 4 foot T5 with the GE brand 6500K bulbs which I can grab with my bare hand while they're on and they don't burn. So obviously the bigger fixture can be closer to the canopy than the smaller one. I am using this as an example to show you not everything T5 is created equal so you can see how there can be differences even with the same temp rating on bulbs of different brands.
EM
Thank u my friend they seem to respond well at about that distance away the stem seemed to have stretched at first because I had the lights about 31 inches high not knowing they wasn't getting enough light but know I've put it about 12 inches away and the stretching has seemed to have stopped I've just brought a bible its says anywhere from 12 to 18 inches the seedlings should respond well I will wait and see I will keep u posted peace
Thx for letting me know 6 to 8inch mark sound about right for my seedling but another thing I need to know my temp goes up to about 81 Under the lights next to the pot level is this giving me faulse reading also got a osculating fan in the room plus my light is a maxibright 2foot 4 tube t5.should I put the thermometer some where else in a shaded spot
Morriston55
Well-Known Member
Make a small shade for the thermometer if youd like, a simple piece of card stock or paper folded in half and placed over the thermometer in a pyramid shape would give you a good reading of the temp at whatever level it is placed
At about 8 inches away it feels OK even seen them closer than that with t5 the plants will let u know what is up with them got no leaf curling up yet gonna switch over 2 my mh soon has they am nearly out of the seedling stage going in to veg using a 250 watt mh air cooled has I grow under my stairs then 400 watt for flower
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