Led Distance & Fertilizer - Help Please

[asayrix]

Hello guys, I recentley made a grow box. I will grow 4 autos. Norhen Lights and Afghan Kush Ryder. I will use LED. When my seedlings pop up what is the optimum light distance on them? when and how much will I reduce the distance everyday ? I am going to use 10 LT of air pots how much water do I need to use on them? 1lt is enough? I will use Advanced nutrutions Sensi Grow, B-52 , Vodoo Juice, connoisseur, big bud, Bud candy. When should I start to give fertilizer?My Nutrients Calculator says start 1st week of grow but I usually read ,it is better to start fert 2nd week of veg. My grow box size : 90 cm x 90 cm x 115 cm I am going to grow 4 plants, do you guys think 5 or 6 plants would fit or Should I go with 4 ? I am going to grow autos only.
The Led I am going to use has 378w


Sorry for bad grammar, Still learning English my 2nd year.

Thank you for your time.

 

[martymcfly]

re: Led Distance & Fertilizer - Help please

Missmouse Gallery - 420 Magazine Photo Gallery


I have an experimental grow with one plant using a 150watt UFO LED and I keep the light about 3 inches from the plant, as it gives off virtually no heat and there is fan built in. I am new at this so can't answer your nute question ... I have been using Optimum Hydroponix A and B during the veg stage but am now in the process of flowering my plants ( only day 4), so I am flushing each plant with plain water left to sit for 24 to 48 hours (pH 6.5). I will start using the blooming nutrients as soon as all my flushes are done ... I have 20 plants so I'm waiting til they need a good watering before I flush. I am growing Jack Herer "Light of Jah" and this is my first grow, so I am hoping for good results. Here is a link to my gallery ...

 

[KingJohnC]

You should consult the LED light company that you are considering ordering LED lights from for a recommended light distance. I recommend when your plants are 4-5 inches tall and have 5 nodes of growth to start them on 1/4 strength nutrients and gradually over time increase until you are using full strength nutrients. Watch the tips of the leaves carefully for yellowing or browning as this is a sign of nutrient burn. If you do notice nutrient burn on your plants the amount of nutrients being fed should be slightly decreased.

 

[martymcfly]

My 150 watt has always been within inches and never any burn, actually, the leaves turn upwards towards the light, they grow differently I can see so far

 

[CronicHempHog]

its because of the light
some of the newer led's are a lot stronger than the ufo
btw how old is the ufo you have as in when did they start making those actual lights?

 

[martymcfly]

I bought my ufo on ebay just about a month ago, seems to be working fine, but I only have one "experimental" plant under that light.

 

[asayrix]

thx guys