Grow Tent Club
- Thread starter gezon
- Start date
this sounds like what i got ??
Magnesium
Magnesium is a component of the chlorophyll molecule and serves as a cofactor in most enzymes.
Magnesium (Mg) deficiency.
Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis. Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though as can be seen in figure 15.
Notice how in Figure 16 and 17 the leaves curl upwards like they're praying? They're praying for Mg! The tips may also twist.
This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.
If the starting water is above 200 ppm, that is pretty hard water, that will lock out mg with all of the calcium in the water. Either add a 1/4 teaspoon per gallon of epsom salts or lime (both will effectively reduce the lockout or invest into a reverse osmosis water filter.
Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients.
Magnesium
Magnesium is a component of the chlorophyll molecule and serves as a cofactor in most enzymes.
Magnesium (Mg) deficiency.
Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis. Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though as can be seen in figure 15.
Notice how in Figure 16 and 17 the leaves curl upwards like they're praying? They're praying for Mg! The tips may also twist.
This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.
If the starting water is above 200 ppm, that is pretty hard water, that will lock out mg with all of the calcium in the water. Either add a 1/4 teaspoon per gallon of epsom salts or lime (both will effectively reduce the lockout or invest into a reverse osmosis water filter.
Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients.
litljohn
Well-Known Member
heres my 4'x4'x7' tent.400watt hps,130cfm in line fan,12 '' osilating fan.2 super skunks in dirt and 3 pinneapple express in the home made ebb and flow.i cant wait till i upgrade to the 1000 watt with an air cooled hood.do you think a 130 cfm inline fan would be good anough to cool a 1000 watt light/hood?
GODFREY1
Active Member
Alright Gezon. Before I wrote that other I looked into the MG defficiency's. I think your ph is to high for that. Plus your pics don't look like the ones I found with that condition. However epson salt is always good. In fact here's a link you should look at. Good recipe in the beginning of this thread. It includes epson salt. I also have a comparison of 2 plants from the same mom in that thread doing the feed on one and not the other. Use the epson salt regardless. If it cures the problem just keep track of that fact. Peace. You can see the start of my comparison on the last page if you wish. https://www.rollitup.org/advanced-marijuana-cultivation/296685-lost-art-foliar-feeding-12.html Later.
i see i thourght a ph level of 6.3 was ok ???? i just went out and got the salt and also seaweed/fish mixure to also folir feed my girls but on diffrent days will feed them what ph you running your plants at???
nice to see more tent growers aboard welcome john the fan you have will do its an 8" yes they have a good flow of power i have 2 use a fan controller to slow myen down and turn it up when needed for e.g smell
GODFREY1
Active Member
Well. I used straight Amazon Bloom on the big girl and cut with the others. I haven't added anything to any of the soil yet. I use tap water and it has stayed pretty much at seven. From what I saw it was in ph under seven mainly. But for some reason I thought I saw your ph at 8. Coulda been somethin else and I remembered it wrong. My bad. But yeah. Don't panic and start sprayin em every morning. My lights go on at 6 am and I usually spray around 10 am or so.
but dont you spray feed when the lights are off?? and how fast do your girls grow isnt it sopose to be an inch per day?? myen have been under the 400w for 2 weeks and i think there looking small any good tips on getting them much bigger ?
santeelocal
Active Member
Here is what I have going I am two weeks into flowering with a 4x4x6.5ft tent with a 400W light and a 400 CFM exhaust fan.
https://www.rollitup.org/hydroponics-aeroponics/308411-my-first-attemp-aeroponics-grapefruit.html
https://www.rollitup.org/hydroponics-aeroponics/308411-my-first-attemp-aeroponics-grapefruit.html
doctorD
Well-Known Member
What up everyone?!?! Im a med patient in Hawaii. All my buddies give me shit for not growing outside but its sooo much faster indoors and I can control everything. Here is my run down.
4x4xt tent
400watt hps in a sealed vented hood the tent has a passive 6" intake
DWC with Advanced Nutrients two part Sensi grow and bloom
A few soil with Botincare pro grow and bloom
I use a can 33 carbon filter hung at the top of the tent with a 4" HO fan pulling through the filter then the light into the fan and out the tent.
In my veg I have a 125watt CFL on 24hr
I do a perpetual harvest so I have plants in various stages of growth. I'm growing a Haze, Strawberry Haze, Violator Kush, Purple Lady, Hazy Brooks and Hawaiian Snow.... I think that's everything.
Well here are some various pics. Hope you guys like my set up.
4x4xt tent
400watt hps in a sealed vented hood the tent has a passive 6" intake
DWC with Advanced Nutrients two part Sensi grow and bloom
A few soil with Botincare pro grow and bloom
I use a can 33 carbon filter hung at the top of the tent with a 4" HO fan pulling through the filter then the light into the fan and out the tent.
In my veg I have a 125watt CFL on 24hr
I do a perpetual harvest so I have plants in various stages of growth. I'm growing a Haze, Strawberry Haze, Violator Kush, Purple Lady, Hazy Brooks and Hawaiian Snow.... I think that's everything.
Well here are some various pics. Hope you guys like my set up.
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welcome doc thanks for sharing you pics with us very nice buds look tasty
hey guys here is a link that might help (with pics) of plant problems and solutions you can use hope this helps ppl in our community 
= http://www.marijuana-seeds.net/Thanks-ThankYou.htm
= http://www.marijuana-seeds.net/Thanks-ThankYou.htm
stvitusdance
Well-Known Member
stvitusdance
Well-Known Member
took some pics tonight. i need to clean up my wiring when i switch to the big reflector and the 400w set up (that's the "blockbuster reflector" and love it.) right now i have a 250w mh in a cool tube running through the 6" in-line fan with a speed controller on it. once i do that i'll take all the twists out of the duct work. i have my 250w ballast in the tent currently but generally i keep the ballasts outside.
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Jamexican
Well-Known Member
What is goin on people I finally got my tent all set up right now I am currently vegging under a 250W MH. I have an 8" duct booster fan venting the air two oscillating fans three four foot flouros, found them at home depot 6500K 40w,s. I am planning on switching over to flowering here soon and run a 1000w HPS. I was wondering if I could get away with another 6" duct booster fan linked by taking off the 8" end cap, (I made this filter myself with some chicken wire, reducers and end caps) and connecting it to the booster fan, then have ducting go from the 6" reducer of the filter connected to a 6" booster fan with that connected to the lighting hood. I amde a lil blueprint, but it wont let me load it.will this move enough air, I am planning on running it as short as possible and the leas est number of bends. Will this be enough to cool the room adequately? I also plan on making a CO2 container with a 2 liter bottle, so a lack of ventilation wont hurt I hope. I am doing this to avoid buying a 6" inline fan, I am on a SUPER tight budget right now. I love the DIY's haha, but here r some pics
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what happend godfrey1?
yeah i've been fighting with my ppm to hight flushed my soil out the curling was heat stress and a bit of nute burn droped my ph level to 5.8 lifted my lights and fans going to keep heat away i'll post pic in a couple of days to see if i've bet the problem hope so
yeah i've been fighting with my ppm to hight flushed my soil out the curling was heat stress and a bit of nute burn droped my ph level to 5.8 lifted my lights and fans going to keep heat away i'll post pic in a couple of days to see if i've bet the problem hope so