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This information is assuming expanded clay is the medium. The sites should fill as fast as possible and the total irrigation should be 15-20 minutes. So time how long it takes to drain. For instance, my old ebb and flow table would drain in 6 minutes. So I let the pump run for 9 minutes. I...

Is there any way to get one water chiller for 3 reservoirs?

I don't have personal experience with coco, but the main properties of hydro are still present. It's still a sterile medium, with hydroponics grade nutrients, and an ideal mixture for fast uptake. Personally, I don't think you'd see maximum growth compared to other methods, but I have no sources...

Anybody who thinks soil is easy hasn't carried 200 pounds of it up 3 flights of stairs only to go right around and carry it out again in 8 weeks. Oh right, that means I need 200 more pounds of dirt. The root aphids come free!

Commercial growers of pot don't put any more additives than commercial growers of tobacco. I don't see how this is any different.

Anecdotal evidence from me says municipal tap water is just fine right out of the tap. If you're using a recirculating reservoir anyway, all the chlorine that can evaporate is gone by the next day. I personally feel like the chlorine helps with pathogen control.

Thanks for the reassurance, pimp. I respect your knowledge in the matter. Guess I will just wait and see what the harvest looks like

I count flowering from the first showing of sex. This usually takes 7 days. Yes, the mother plants were mature. They vegged for 16 weeks. So these clones won't produce as much as from seed?

Title basically says it all. I grew seeds of violator kush and had a vigorous pre-flower stretch in the first two weeks. I took clones from the vegging seedlings and currently have them in the flower room. They are 14 days into flower, 21 days of 12-12. I'm not seeing the same kind of growth as...

Hey panhead, not to be too far off topic, but you can't post pictures on this web site with an iPad. I really hope you could bring that up with the developers of this website! The problem seems to be the uploading page where you need to click, hold, and scroll through the options. Since an iPad...

More information needed! What nutes, how old is the plant, is it old growth or new growth? Looks like possibly phosphorus deficiency

I just used those yellow sticky traps. Apparently the gnats are attracted to yellow, or so the traps say. It worked for me!

The top of the root system doesn't need to be in water at all. In fact, it's better that way

Your water should not be brown like that. Basically, you need to lower your reservoir temps to 65-68 degrees and add h2o2 every 3 days.

My ph ranges from 5.8 to 6.1, I check it every 2-3 days and that's how much it fluctuates. Usually I'll top off with 3 gallons of tap water and it takes 15ml of ph down to get back to 5.8. Again this is about a 40-42 gallon res.

Thanks for the response trichome. I thought the clawing of the leaves was a sign of over fertilization. Cuz your plants looked just like a couple of mine.

Looks like phosphorus deficiency too..

Trichrome, I notice you have some nitrogen toxicity in your latest pics and I'm curious to know a solution as I have had the same problems. I use botanicare cns 2 part nutrient formula. The directions recommend a 50-50 mix of veg and flower nutes during the transition. I recirculate my reservoir...

Or you could do a wick system which is even easier

Most drip systems are drain to waste. Meaning you don't have a recirculating reservoir. The system you're talking about most certainly is a form of hydroponics. First of all, why would the pots be off the ground? In coco, most growers treat it like soil by using 1-2 gallon pots and simply...