The Easiest Way to Maintain a Properly Balanced Nutrient Solution For Ideal Plant Growth!
General Hydroponics pH Test Kits make pH testing easy. Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator (Use 3 drops per 5mL of solution), and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because it is reliable and easy of use.
pH Control is essential for simulating vigorous plant growth. Nutrient solution pH that is too high (basic) or too low (acidic), cannot be properly absorbed by plants. Incorrect nutrient solution pH can cause issues such as slow growth, sick plants and low yields.
The pH scale measures acidity or alkalinity on a scale of 0 - 14. Below 7.0, the pH is acidic. Above 7.0, the pH is alkaline (basic). 7.0 is "neutral". The best pH for plant growth is generally in the range of 5.5 - 6.5 -- slightly acidic.
There are several causes for incorrect nutrient solution pH. Tap after used to mix nutrient solution often contains minerals and impurities that can affect pH of your nutrient solution. Rapidly growing plants consume different nutrients at different rates, thus altering the solution's original pH. Growing media such as rockwool or construction grade aggregate (pea gravel and shale) can dissolve slowly, greatly affecting the nutrient pH and causing to rise or fall significantly.
By maintaining nutrient solution pH within the range of 5.5 - 6.5, you can assure your crop "maximum availability" of all nutrient minerals. This will give you higher growth rates, higher yields, and healthier plants -- healthy plants are more resistant to insect infestation and disease.
Test adjust nutrient solution pH after mixing fresh hydroponic solution (or fertilizer for soil cultivation) and again every few days to maintain correct pH. For best results, discard and replace hydroponic solution regularity.
Directions: Fill test tube halfway with nutrient solution. Add 3-5 drops of pH test indicator and tap on vial to mix contents. Compare color in vial to pH color chart to determine nutrient ph.
Repeat to verify the nutrient pH is now within the correct range (5.5 - 6.5.)
General Hydroponics pH Control Kit Videos
General Hydroponics pH Control Kit Questions & Answers
What is pH?
Can you explain this in a little more detail?
What pH is best for growing plants hydroponically?
How does pH level affect plant growth?
How do you change the pH?
What if I can not get any pH Down, and my system is running high?
How often should I check my pH level?
How much pH Up/Down is needed per gallon?
The pH in my system drops below 4 every few days after cleaning and refilling. How do I increase the pH and stabilize it?
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(Posted on June 7, 2016)