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|New Immigration Laws Pave the way for Hydroponic Farming
Powdery and Downy Mildew
Building your own Indoor Grow Room part 2
Building your own Indoor Grow Room part 1
The Benefits of Chelated Micro-nutrients
Is the pH really that important?
Getting Bigger Yields From your Hydroponic Plants
Tips for getting the most out of your nutrients
Millions of dollars lost in hydroponic tomato plant sabotage
Growing Hydroponic Raspberries, part 2
|Newbie to this forum and to hydroponics
Solution recipe for radishes
bibb lettuce question
My first indoor aeroponic setup
Aquaponic system ph level and nutrients
Can maincrop potatoes grow in soil-less environment?
Selling barely used 10and 8 ton ventilation systems & more
First Timer to Hydrophonics
need help with Peace Lily
NFT uneven growth
Cyanobacteria, tea not working, PLEASE HELP!
Ebb and Flow question
Seed germination questions
Green house. Nft and dutch buckets
New guy, strawberry tower
It's Cyanobacteria! Questions about tea!
life of lettuce in dwc question
Northern lights bloom box
|I built this 17 plant version of your system as a little experiment / hobby and am really amazed at the results! The plants (Tomatoes, Squash, Bell Peppers, Lettuce) have gone crazy since I transplanted them and learned how to control the pH|
|I'm using phosporic acid to lower my pH. Works well. My Rubberwmaid container holds exactly 15 gallons to the horizontal line.|
|For my solution, 3 drops of acid from the medicine dropper lowers the pH .12 points. Easy enough to keep up with except that I have to adjust it every other day.|
|I built a dirt cheap astable (fancy word for oscillating) timer from some electronic components at work (555 timer IC, capacitors, resistors, solid state relay, ect) (Note: the metal can is grounded) It looks like a bomb so I won't be carrying it through an airport! It turns on for 3 min, and is off for 40 min and can be adjusted for most any time cycle by changing a couple of parts. It runs 24 hrs a day but could be turned off at night with another timer or a photocell circuit. No moving parts or computer to fail, will probably just run on forever.|
|pH and EC are measured by a Hanna Instruments AgriTest pocket meter. It is both meters in 1 and is only 80 bucks direct from hanna instruments. (www.hannainst.com) Comes with meter, case, calibration solution, small adjustment screwdriver. One hell of a deal!|
I took your advice on the airstone and am convinced that it's really important. The grow rocks work well except that I didn't rinse them before the first use and wound up with grit all in my solution. I dumped it and started over.
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