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dadio has good advice. As to nutrient / ppm levels, what will make one strain grow great without problems, will give you nutrient burn on the other strains. A nutrient level that won't give you burn on the others, will not feed the one to its full growth potential.

Straight forward easy design. You might want to tee out of your pump line for an easy way to drain the reservoir...

While Medical Marijuana is still several years away in Georgia, let me point you to 1 possibilities: http://rules.sos.state.ga.us/cgi-bin/page.cgi?g=GEORGIA_COMPOSITE_MEDICAL_BOARD%2FCONTROLLED_SUBSTANCES_THERAPEUTIC_RESEARCH_PROGRAM%2Findex.html&d=1 and study OCGA 43-34-120 -126 which is the...

Miracle Grow for Tomatoes is a fairly complete chemical fertilizer. No, it doesn't have every little stinking micro-nutrient in it. It was not formulated that way by design. It was designed for use in soil, where the soil has the other micro-nutrients. Over application of anything will kill the...

MisterMicro, I'm glad you like the World's Simplest Ebb/Flow Unit. I created the little tutorial several years ago when I was really getting into hydroponics. I got the original idea from someone else, but refined it a bit. Someone pulled the web pages off my website and made it into a pdf...

Please study on ebb and flow basics a little more. What is great about RIU, is that every question has already been answered. Do a google search: site:rollitup.org ebb flow and find a grow journal with a setup like you want. Then imitate it. Now as to your questions: 1. Any pump you...

I have Miracle-Gro Tomato Plant food for my house plants (some hydroponic). It is NPK 18-18-21. It is designed for soil. But reading the Guaranteed Analysis, it also has Magnesium, Copper, Iron, Manganese, and Zinc. These are very important trace minerals. So it's good. But Cannabis seems to...

Actually, the good bacteria that we want is "Aerobic", organisms with an oxygen-based metabolism. Bad bacteria is "Anaerobic" which literally means without air (oxygen). These bacterium are the cause of root rot, etc. So air stones in the reservoir, keeping it at the proper temperature for...

Fertilizer manufacturers assume that the plants are getting trace minerals / elements from the soil. Nutrients have the big 3, N P K, but also have the trace minerals that the plant needs for healthy growth. You can use a fertilizer with lots of supplements and guess work, or use a complete...

If you are a first time hydro grower, I would leave the cocotek alone and follow the tried and true methods here in RIU. If you are a dirt grower, the cocoteck might be of value. Overall, I think you were being sold something you don't need or know how to use.... OverGrow

I agree that in a real installation you would want to cap the ends of the wires for safety purposes. I didn't in my example because as the title of the thread says, it was a proof of concept - testing a crude idea.:idea: Think about the versatility of adding / removing cfls, adjusting the...

The amount of information in Rollitup.Org is huge. Finding an answer to your question is already in the forums because somebody else had your problem too and got an answer. But where is it? The search function in the forums doesn't seem to work, so there is another way to find it: Google Search...

I just stumbled across this thread and have enjoyed reading it. My coir source is Hydro-Gardens, Colorado Springs, CO. They are into commercial hydroponics / greenhouse systems. But they have a very good coir system. The coir comes in its own growing bag. Just wet it to expand it, plant and...

If all the newbies would read this first, RIU would only have half the message volume. Thanks. :joint::joint::joint:

I found this circuit on the net. I looked and the parts would cost about $3-4 but shipping from different places would kill its practicality. Maybe some of you EE types could redo the circuit with more readily available parts, say from Radio Shack, etc. This circuit is cheap enough to make...

It does not hurt to have a bubbler in any reservoir no matter the system. If for nothing else, it will keep your nutrients stirred up. Even though my waterfarm only holds 2 gallons, I keep a small air stone going in it. It probably doesn't do much good, but I rather have than not.

There are some very creative DIY solutions to mounting CFLs in grow spaces. Being a inventive DIYer, I'm always coming up with ideas. My idea for a light bar is to use a perforated angle iron to mount CFLs. I got the perforated angle iron at Home Depot - a 3 foot length cost $8.00. I...

The water farm system is designed to run 24/7. The strength of your nutrient solution depends on the strain, but at 7-8 inches you can start increasing the strength. Do it slowly until you see some nutrient burn, then back off some. Remember that with floros, get as close as you can, if you...

This is very important to all of you who live in California: The Jack Herer initiative to legalize marijuana receives official title and summary The Office of the California Attorney General released the official title and summary of the Jack Herer California Cannabis Hemp Initiative...

Roseman, I've followed your threads all over riu, and want to give a big THANK YOU for all you have done. To test my understanding of Bubbleponics, I tried this simple little test. I tried to see how simple I could make it. A 100-count CD case, a 2 inch net pot, a few hygromite rocks, and a...