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From now on, you need to start getting your supplies from a hydroponics shop instead of home depot. The fertilizer you currently have is designed for purposes other than what you're doing. You should be using something from General Hydroponics, Canna, Fox Farm and the like. Do a google...

Let me know how that Bubba Kush tastes! I've got some Bubba Kush seeds in my fridge, and I'm waiting for a special occasion to get them started. If you plan to have future grows, and can spare a hundred bucks or so, you've got to get a PH/TDS meter that can read the PH level as well as PPM and...

If you're short on cash, the last thing you want to do is buy the wrong bulb, and have to get another one to replace it. If you're looking for one bulb to go from start to finish I would recommend going with HPS. You won't get much in the way of bud if you try flowering with CFL's. Check out...

If your roots are submerged, you won't need to worry about watering anymore. The bubbler you already have will be necessary to deliver oxygen to the roots, so you should be fine there. You basically want it to look something like this: I think the most simple solution will to be what you've...

What type of nutes are you using? What is the PH/EC level of the nutes when you do feed? How often do you feed with nutes, and with plain water?

Cutting a plant is perfectly fine. Many plants (Moms) are grown solely for this purpose. Within a week or so, your plant will begin to divert hormones to other branches and make the other branches bigger and stronger than if you hadn't chopped a branch off. Topping is also a common practice...

What is the PH level and EC level of the mix you're feeding them? How often do you feed with nutes and with straight water? Have you checked the PH level or EC level of the runoff water after watering?

It's ok for the roots to be suspended in the air, I actually grow using aeroponics, so it's perfectly fine for the roots to dangle. I guess it just looks like there isn't enough humidity inside the rubbermaid for the roots to venture out of the net pot and down into the water below, which is...

Sativas are more difficult to grow. For your purposes here, you'll never need to spray the leave with anything. What cgrizzle meant by .7 is the conversion factor used to calculate ppm. Different companies use different conversion factors to determine ppm. Just as we use torque to calculate...

Your setup sounds pretty good, and the plants shouldn't be having any issues at 940. If anything, I would guess that the indicas would like to be closer to a ppm of 1200 at this point. Those sativas are really going to throw off your grow. Personally, I would just make sure the indicas are...

I would stick with your plan and just top off with some plain water and see how things go from there. The leaves are dark, which indicates they have plenty of nitrogen, but I'm just surprised that a plant that size can survive with such a small root system. A TDS meter to read EC/PPM will be...

I've had similar issues growing in soil (which is why I avoid it now), but I would guess it's just a PH issue. If you have a PH/TDS meter, I would check the runoff water that you get the next time you water. Also, you could probably lower your PH level a little down to 6.2-6.5 for the next...

I'm no expert, but almost always the sativas will require less nutes than the indicas. Are the brown areas showing up mostly on the indicas or sativas? From the photos you posted, it actually looks like photo 3 is an indica, and has a deficiency, however photo 4 looks like one of the sativas...

How old are the plants, and what stage of growth (e.g. veg, flower)? I'm guessing these are clones, how long have they been in the aero? If they're more than a couple weeks, it's time to increase the nutes to around 1200 ppm @.7 conversion.

Is it possible that this could be related to having low levels of CO2? I have a large, but enclosed/sealed area for my room, and just started supplementing with CO2 yesterday.

Are they getting fed through a drip system or a sprayer from underneath? What is the current PH and TDS reading for your res? You also mentioned that you're in a warm climate, do the contents in the res feel warm or cold? If your res temps are too warm, it could be cutting off oxygen to the...

AK-47 clones were planted 11 days ago. They are all from the same Mommy. PH is 5.8, and the EC is 1.50. They are in an Aeroflo system on a 12/12. Temps are a comfy 74 degrees, and slightly warmer right next to the bulb, 600 HPS. I use GH Flora, and stick pretty much to the game plan outlined...

With the deficiency issues that you're already seeing in your garden, you'll definitely want to move up to half strength nutes. Not only was 1/4 strength not enough, but the plants are also bigger now and can handle more. I would go to at least 1/2 strength, but the best thing you could do is...

Looks like you've got your hands full with all those girls/boys. Hopefully your neighbors don't wonder why you have so many tomato plants as you bring them all upstairs... lol. Looking forward to see how many girls and boys you have to work with, but with your new and larger grow area, you...

I've been following your grow and I'm really impressed with the results from the t5's. I'm about to start a grow with the same dual 30 site Aeroflo setup as you have, except I'll be using 2 600 watt HPS for flowering. I've always used t5's for veg, so I can't wait to see how this turns out...