Switching from HPS to LED Week 4 Veg?
- Thread starter bigbuzznutz
- Start date
JoeBlow5823
Well-Known Member
Any way to cool the space?
JoeBlow5823
Well-Known Member
Lol so we are in agreement. Cool.
JoeBlow5823
Well-Known Member
Even just a single in room air conditioner inside the tent with venting ran outside could do wonders.....
bigbuzznutz
Member
I’ve got a swamp cooler in there to keep the tent at 75/58 running at 750w. I had installed an Ares 2 which had more to do with my heat issues than the turn to 1000W. I removed the generators and will switch to canisters after this flower. Due to the current size of the plants my thought process was the LEDs would buy me around 6-8” of vertical space. I’ve got my 12 tallest plants in the center to minimize heat/light concerns but I’m a week overdue on flower because of the initial heat issues. Like I said, in way over my head and trying to smooth things out a bit more before I go into flower.
Thinking I’ll just hold what I’ve got for the time being and get through this flower and reevaluate then.
JoeBlow5823
Well-Known Member
Sounds like you need some air conditioning.
tkufoS
Well-Known Member
Bullshit ! I dropped my shitty @MarsHydrofactory tsw2000 for a 600w hps for the last two weeks of veg ... flipped to 12's on new years eve..long story short..my girls are happier
!jonnynobody
Well-Known Member
I apologize for the way the community responded to your question. Emotions run high in this LED forum as you can see. Can you post some pictures of the plants? I'd like to get an idea of what your current environment is like. You have 4 1000's dialed down to 750 to address heat issues. That's to be expected. Generally speaking a 1000W HID fixture generously illuminate a 5x5. 4 in a 10x10 is too much which you've already discovered. The fact that you can even run 4 of them at 750w is impressive in my opinion. Very impressive. I suspect you've got a/c within the room the tent is in or you're piping cold air into the room from outside. Either way, you're doing great with cooling considering how much output you've got crammed into that 10x10 tent. The LED lights you went with are very nice. With 800W max output I think you made a great choice going with 2. Try it out. See what your temps are like. See how the plants respond. I typically keep my LED quantum boards at the maximum height available in both my nurseries and flower room. With 800W of output you don't want them sitting 6 or 8" away from your canopy. If the light is worth it's salt you'll just bleach the foliage and fry your canopy. Been there. Done that. Bought the t-shirt. You should be able to squeeze a 3rd in there depending on how your test results turn out after you've installed the 2 you already ordered. Post some pics dude. We love pics around here
Edit: Under ideal cooling you could squeeze 4 in there.
Here's a pic of my flower room and how far my quantum boards are from the canopy. 660w on the left qboard. 450w on the right.
Same in the nursery with two 110w boards
Congratulations on the sweet new hardware! Hope to see some pictures when you have time
PJ Diaz
Well-Known Member
Switching from four 1000w HPS to four 750w LED fixtures will reduce over 3000btu's from his room, and also save 12kWh per day in electricity costs during flowering.
jonnynobody
Well-Known Member
The best part about LED fixtures is you don't have to run an intricate and costly HVAC system to deal with the heat. That's actually why you see the mixture of HID and LED in my flower room. I wanted to add more lumens, but I had no desire to cut another hole in the side of my house nor did I want to purchase more costly inline fans to cool the lamps. LED was my only option, and I couldn't be happier. As my HID's ballasts burn out in the years to come I will upgrade to LED one by one. The savings in electricity is a lovely bonus.
JoeBlow5823
Well-Known Member
Cool. still sounds like hes running to hot.
bigbuzznutz
Member
I apologize for the way the community responded to your question. Emotions run high in this LED forum as you can see. Can you post some pictures of the plants? I'd like to get an idea of what your current environment is like. You have 4 1000's dialed down to 750 to address heat issues. That's to be expected. Generally speaking a 1000W HID fixture generously illuminate a 5x5. 4 in a 10x10 is too much which you've already discovered. The fact that you can even run 4 of them at 750w is impressive in my opinion. Very impressive. I suspect you've got a/c within the room the tent is in or you're piping cold air into the room from outside. Either way, you're doing great with cooling considering how much output you've got crammed into that 10x10 tent. The LED lights you went with are very nice. With 800W max output I think you made a great choice going with 2. Try it out. See what your temps are like. See how the plants respond. I typically keep my LED quantum boards at the maximum height available in both my nurseries and flower room. With 800W of output you don't want them sitting 6 or 8" away from your canopy. If the light is worth it's salt you'll just bleach the foliage and fry your canopy. Been there. Done that. Bought the t-shirt. You should be able to squeeze a 3rd in there depending on how your test results turn out after you've installed the 2 you already ordered. Post some pics dude. We love pics around here
Edit: Under ideal cooling you could squeeze 4 in there.
Here's a pic of my flower room and how far my quantum boards are from the canopy. 660w on the left qboard. 450w on the right.
View attachment 4786938
Same in the nursery with two 110w boards
View attachment 4786936
Congratulations on the sweet new hardware! Hope to see some pictures when you have time
Here’s the setup and some of the problems I’m having. This is my first grow and I’m quite overwhelmed. Lol. Plants started as clones and I haven’t quite killed them yet!!
PJ Diaz
Well-Known Member
What are you feeding them, and how do you deal with your runoff? It looks like you have nutrition problems, but I can't quite tell if it's a deficiency or lockout, but I'm thinking that it's lockout due to ever rising EC in the medium because of to poor runoff collection practices.
mc130p
Well-Known Member
no. you're the idiot using a mars light. of course your plants improved. they were shit seven years ago. there's nothing wrong with the HPS.Bullshit ! I dropped my shitty @MarsHydrofactory tsw2000 for a 600w hps for the last two weeks of veg ... flipped to 12's on new years eve..long story short..my girls are happier
Canadain Closet Gardener
Well-Known Member
LOL I don't think anyone even answered your questions.\
I looked up your lights
Mounting height: 6-24" above canopy is what the manufacture recommends
I would put the leds at 100% power at 18 inches and slowly lower it to find your plants sweet spot.
Personally I would also fit one of those HPS in your tent right in the center too. Then see if heat is still a problem.
My guess looking at your plants. My guesses are almost always over watering. Lift your plants to see if they need watering.
So questions would be how often do you water?
What are you feeding?
Also you said clones but are they different strains ?
Cheers and Welcome to RIU
CCG
bigbuzznutz
Member
Initially I was over watering big time. That stemmed from the mistake of transplanting my clones directly into 7 gal pots. Not sure who told me to do that but lesson learned. That’s obviously created a situation for me now where I tend to under water/feed now. Each plant is roughly getting 21ozs of water at 9am and 9pm each day. They’re being fed with Humboldts Base A @ 2.5ml/gal, Base B @ 2.5ml/gal Cal/Mag @ 3.2ml/gal and Power Si at .5ml/gal. Water has always been balanced between 5.7-6.1. Currently in W5D3. There are five strains in the tent, (once again, noob move,) looking left to right at the pic that has all four rows they are 6 x Shineapple, 6x Holy Grail Kush, 3 x Bordello (back three plants,) 3 x Sour Joker (currently the super like green pics) and the last row is 6 x Colorado Chem.
Everything seemed to be moving along, constant new shoots every evening and new leaves in the am. I then decided to up my wattage to 1000 and gradually increase the nutes from around 250ppms to the 450ppm range over the course of 6 feedings. The plants showed signs of significant heat/light distress around day 2-3 of the higher wattage. Lowered the watts down 3 days ago. In the two days after turning the power down I hit the plants with 6.1 pH water with 5ml/gal Recharge hoping the ones that didn’t seem to be up taking as much water would balance out and start growing again. I hit them with nutes again last night at 300ppms adding .75ml/gal of nitrogen and an extra .75ml/gal of cal/mag as well as a cal/mag foliage spray at 1.25ml/qt last night when they went to sleep.
Hope I covered everything. Leaning toward trying a whole new flush this morning and then letting them dry out until tomorrow.
jonnynobody
Well-Known Member
It looks like your plants are suffering from heat and light stress. See your leaves taco shaping? They're trying to cool down by decreasing their surface area to reduce transpiration by forming into a taco shape. You need to cool your girls down. Reduce the light intensity. I see you're running HID's without air cooled reflectors inside of the 10x10. You just can't pull that off in a space that small without air cooled reflectors and inline fans to pipe the heat out of the tent quickly. Running HID's in a 10x10 is no problem. You have to use air cooled hoods though. I would suggest getting some saucers under your plants to reduce the mess on the floor of your tent. Also I would suggest placing your plants on top of plant elevators, so the root balls aren't sitting in a pool of water. You have a great template for success here. You just got poor advice on lighting when you purchased those HID's without air cooled reflectors for use inside of a grow tent which you have already fixed by going with LED's. You'll most likely need an electric heater inside of the tent with your LED lighting to maintain temperatures in the 78-82 range as the lights themselves do not give off a significant amount of heat. I prefer the electric oil filled type. They don't generate dry air heat that rapidly reduces humidity and they're much safer than other style heaters.
Correct the heat and light stress issue. Your plants should rapidly recover. What kind of nutrition are you giving these girls?
bigbuzznutz
Member
Thanks for the reply bud! This is from my previous response. Additionally I’ll add that I have 8” inlines running intake/exhaust and am currently sitting at 76/55. The issues occurred a few days after adding my CO2 generator. I pulled them after a few days when the heat became unmanageable but it looks like the damage was done.
Initially I was over watering big time. That stemmed from the mistake of transplanting my clones directly into 7 gal pots. Not sure who told me to do that but lesson learned. That’s obviously created a situation for me now where I tend to under water/feed now. Each plant is roughly getting 21ozs of water at 9am and 9pm each day. They’re being fed with Humboldts Base A @ 2.5ml/gal, Base B @ 2.5ml/gal Cal/Mag @ 3.2ml/gal and Power Si at .5ml/gal. Water has always been balanced between 5.7-6.1. Currently in W5D3. There are five strains in the tent, (once again, noob move,) looking left to right at the pic that has all four rows they are 6 x Shineapple, 6x Holy Grail Kush, 3 x Bordello (back three plants,) 3 x Sour Joker (currently the super like green pics) and the last row is 6 x Colorado Chem.
Everything seemed to be moving along, constant new shoots every evening and new leaves in the am. I then decided to up my wattage to 1000 and gradually increase the nutes from around 250ppms to the 450ppm range over the course of 6 feedings. The plants showed signs of significant heat/light distress around day 2-3 of the higher wattage. Lowered the watts down 3 days ago. In the two days after turning the power down I hit the plants with 6.1 pH water with 5ml/gal Recharge hoping the ones that didn’t seem to be up taking as much water would balance out and start growing again. I hit them with nutes again last night at 300ppms adding .75ml/gal of nitrogen and an extra .75ml/gal of cal/mag as well as a cal/mag foliage spray at 1.25ml/qt last night when they went to sleep.
Hope I covered everything. Leaning toward trying a whole new flush this morning and then letting them dry out until tomorrow.
jonnynobody
Well-Known Member
What kind of medium is that? Soil? I'm in hydro these days, but when I was feeding synthetic chelated fertilizers to my dirt plants I always did a feed, water, water, feed regimen. If I watered with fertilizer juice every time I would have fried my plants. Soil growing is much different than hydro. The plants require different feeding regimens. I can assure you the damage you're seeing has nothing to do with over watering. It's light and heat stress. Possibly exacerbated by over fertilizing.
jonnynobody
Well-Known Member
You have 8" inline fans providing ventilation for intake and exhaust in your 10x10, and you're also running a co2 generator? Is the co2 generator inside of the room the tent is in and you're just juicing the whole room with co2? Where does the hot air exhaust get dumped to? I'm curious if your room and ventilation is properly setup for co2 supplementation. You've got tenacity my friend. You really jumped in with both feet. I dig it