|Search Hydroponics Online:|
|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
|2018 marks the 20th anniversary
My AeroGarden Farm Plus Setup
Bland tasting vegetables
Hi there, I have a question, please help
Basil leaves turning brown Kratky
Kratky Method Nutrient Issue
DIY hydoponic DWC system auto top up
DWC Setup (India)
Indoor winter greens using flood and drain system with PVC pipes
cucumber leaf problems
How good a hydro grown plants?
What are your main difficulties with water in hydroponics?
My homemade deep water culture
can imagine the water running back through the pump
Light recommendation for Tomato Hydroponic setup (first timer)
|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.
Copyright © 1996-06 by Hydroponics Online All rights reserved .Revised:01/01/06