Cannabis Troubleshooting

Hi Guys I have identified one of my plants as being deficent in Magnesium, lower leaves are browny black at the tips ( and getting bigger) and the higher leaves are starting to show the same symptons? ...I have heard you can treat it with magnesium, any ideas how??

I have just repotted 3 one inch and 1 two inch seedlings from potting mix to coco/perlite mix 70%/30% after the seedlings were not growing and have been in for 19 days now.They have been under 250watt MH and yesterday i put in my 250watt HPS.I have good intake and outake fans. I have a cheapo PH tester that measures wetness of medium,light and the PH.After transplanting them into coco/perlite i tested the PH and it reads just past 7PH.What can i use to lower it? As i believe around 5.2 to 6.5PH is right for growing cannabis.I have read some people water in vinegar into the medium but thats usually soil not coco/perlite and other people say coffee grounds but then other pe…

I have been doing "trials" on a new growing space before i attempt the main event. In a DWC setup i have 6 plants sharing the same nutrients, all 6 plants are grown from seeds, all seeds from the same plant, 3 are healthy and growing, 3 have stalled and started to show signs of "?" PH has been 5.7-5.9 the whole time EC started at 0.2 for the first few days then 0.4 by the end of the first week. gradually bumped it up every 4 or 5 days, currently EC is at 1.2 Lots of dissolved oxygen in the water Nutrient solution has been Canna Light distance is not close enough to cause light burn its just strange to see a 50/50 of healthy and unhealthy from the same res......

Hi all I have two girls supposedly of Kona Gold in a 1.2x1.2x2 tent in approx 8 weeks of bloom I say supposedly as they look like 2 different strains. Anyhow what concerns me is one of the plants has curled leaves and is not budding like its "sister" . Any suggestions. Thank You Crystal

Hello everyone. Really need some advice here because I can not get my plants looking healthy. I have encountered a few problems which I feel I have dealt with appropriately but still I am struggling. The plants are Greenhouse Great White Shark. 17 of the 18 seeds germinated and 15 strong seedlings survived. The seeds were germinated in 1", pH adjusted Rockwool cubes. Up until a week ago the seedlings remained in a propagation tray where I would water them by hand at 7am, 6pm and midnight but it got to the point where I could not water them enough by hand so I placed them into my hydroponics system. The system is a drip irrigation recirculating system with …

Hello OS'ers Having what may or may not be an issue with my room. The RH often drops to 30% in my room during lights on. The plants don't seem to be suffering any ill effects at all but I have been unable to find a minimum recommendation for Rh anywhere, only maximum of around 60%. Cheers

I have a problem with my jack herer and Euforia both are turning a pale green colour and curling under slightly, my room temps and humidity are near on perfect during lights on and off, all my nutes are mixed to a 2.0 EC as reconmended by lable for grow 20ml A and B per 5 litres i have recently smashed my digital PH tester i have another one on the way, would this be my problems to high or to low PH?. i also am running one 600hps light with two UFO LED lights i wouldnt think it was over lighting, as the plants were fine the first three weeks. altho i did lower the lights to 2 feet above tallest plant

help my light timer stuffed up and came on for 1 hour while plants were sleeping there 2 weeks from harvest very worried what will happen what to do

Hey stoners I'm currently half way through the second week of flowering in a cabinet grow. I'm using a 600w lumatek digital with SonT globe with the booster switch on, and cooltube with inline fan to control heat. cyco flower A+B, Zyme, Rhizo, and Potash with EC about 1.7 and ph 5.6 growing in rockwool. Grow space is about 1m cubed Ever since I upgraded to the 600w (had a 400w magnetic before), the new growth on the tops of the plants that are directly under the light are growing yellow leaves. The first week I had the 600w I didn't have a fan connected to the cooltube, and thats when the yellowing started, but has been continuing even with the fan on…

just bought this product from bunnings for summers grow has any one used this product? how did it work lots of wallabies and birds in my neck of the woods

a mate asked me to look at his potplant and it's well into flower but looks to need a little longer. Sydney's been so damp lately he's got fungus through the buds. I just looked at the BOM though and it appears we are in for a sunny week. If he leaves it alone and it remains sunny will the rot just die, or now that it's got a hold will it just worsen? Seems a shame to pull it early.

My plant have pale leaves. they have between them 2-4 weeks left of flowering. ive been hand watering them with bio canna and dutch master additives 3 times a week. Should i use a nitro grow solution next time or will they be ok.?

Hey, hopefully someone can help!! Two plants about 4 weeks since transplant, under 600w hps, fully auto thermostat controlling exhaust fan, normal fan circulating air. Temp kept between 26 - 30 degrees celcius. growing in coco medium with a little perlite added to it, 12L pots. Not a hydro system but using hygro fert, does this matter?? Plant growth is great, very fast, sturdy and bushy. Still in veg stage. Bottom leaves going yellow, slightly drooping and curling at the tips, new growth is fine. yellowing starts between the veins, tips curl, then leaves die from tip of leaves and outer edges. end up having to cut them off. Thought it was magnesium so I dissolved some ep…