Special Kush 3x3 Sea of Green

So here's the plan: 3"x3" (90 cm x 90cm) growtent, 16 special kush seeds, 6,5 liter pots, LED powered. I germinated 18 seeds just in case some of them get in to trouble. All of them popped, great start :) It's pretty cold around here at night, temperature drops to 15 C (59 fahrenheit) which is pretty low, but they don't seem to care about that. They're 'special' kush after all, not just some regular folk ;) I accidently bought Plagron Growmix instead of the 100% natural soil, oh well.. I'm using Plagron 100% natural nutrient throughout this grow, but I'm not adding any nutrients because the Plagron Growmix is pre-fertilized.

Everything's still going pretty good. With my previous grow I had some problem with overwatering (classic noob mistake), so as you can see on the video I'm giving them small amounts at a time once every 4/5 days. Made a photo of the light that I'm using. Flowering mode is turned off so power consumption is around 120 watts.

I'm spending lots of time just staring at my plants. They're growing so fast now. I'm adding root stimulator to the water and lower the PH level of the water to 6,5 with lemon juice. I read somewhere that using lemon juice is less effective on the long run than phosphoric acid. If anyone has more info about this, please leave a comment. Used iron spray on a weekly basis to keep the leaves green and healthy My Spectrabox Pro 4s light has a flux density of ~ 400 µmol s/m² and a max power consumption of 240 watts which I think is a bit small for my 90x90 cm tent. I researched for days and finally bought the Hans Panel 180w to accompany the other led. I'm loving this thing so far. For 250 euros you have a a panel with strictly high quality Cree diodes, a dimmer (great for germination and saving energy in early stage) and a bloom switch for extra red + deep red LEDs. The panels are developed by Hans himself, you can see mutiple test grows where pulls 1,2 from every watt here: http://www.ledgrow.eu/test19.php Total flux density is 1140 µmol s/m² now which is comparable to a 600watt HPS. My total power consumption in flowering will be: 240 watt led + 180 watt led + 15 watt exhaust fan + 5 w eco fan in room = 440 watt Compare this to a 600w hps setup: 600 watt HPS + 70 ballast + 60 watt powerfull exhaust fan + 10 fan = 740 watt total So the LED setup uses 63% of a HPS setup. This means less money spent on electricity, less fire hazard, longer lifespan of LED's, etc.

Oh girl oh girl, these ladies are having a good time. Switched the light schedule to 12/12 on 13 nov (21 days after germination) Steady growth on all plants still. I haven't switched the LED lights to flowering mode yet because there's no sign of flowering growth yet. By doing this the plants will stay nice and compact. Last watering was on 15 nov (5 days ago). I will water again tomorrow. This is my second indoor grow ever (and my first serious attempt), and I refuse to make the same overwatering mistake again ;) I removed 2 big fan leaves on the top of every plant. My theory is that the soon to become colas will get a bit more light and reach to the canopy quicker, let's see what happens over the next week. One of the cons of using seeds for a sea-of-green is the possible difference in growth. Luckily not too much difference in height between them so far (please note I corrected their height differences last week by raising some of the plants. I noticed a glassy, weird look on some of the leaves in the far left corner of the grow tent. After contemplating I realized that my fan was aimed in their direction and the issue might be wind burn, so adjusted the direction (see first photo) I noticed slightly higher humidity, around 60%. I will keep close attention and take action to lower it if needed.

-- day 29 -- Started week 5 off with watering the plants. The nutrients from the soil are probably used by now so I'm adding a first small dose of Alga Grow. -- day 30 -- Its been 10 days since I changed the lights to 12/12. Switched the lights to full capacity with the bloom mode on. -- day 31 -- I'm already seeing the first signs of flowering today. Noticed first signs of light burn so raised the lights to 55 cm above canopy. -- day 32 -- Watered the plants with 2 ml/l alga grow + 2 ml/l bloom. -- day 34 -- I think I've been too cautious with nutrients. Plants are relatively light green colored. Not sure if I mentioned this before but I chose to schedule my lights so that they turn on at 22:00 and off at 10:00 in the morning. I did this because the room warms up with lights on and keeps the temperature up at night without any heating on to save energy. Only disadvantage; I can only look at my plants in the morning and late evening ;)

Still having loads of trouble with light burn / stressed out plants. Leaves pointing up, turning yellowish. Lights are now even at 80cm above plants, can hardly go any higher. I'm surprised, because the Hans Panel 180w is used at 30cm in numerous grow reports online with no issues. Must be the combination thats too much. 420 watts in a grow tent, and leaves are burning alive. If that ain't proof that LED's can't 'outperform' HPS ;) Does anyone have tips & tricks for making my plants healthy? It feels just silly to remove a light and continue with only 180 or 240 watts total.. Should I use CO2 tabs or something? Do they actually work at this point? Questions questions.