Comparing organic and regular hydroponic nutrients from a chemical perspective
22:06
Is having run-off necessary at all in soilless growing?
19:29
Can the root zone do anything with carbon?
13:21
Silicon and silicates in hydroponics
25:40
Understanding media through moisture retention curves
21:39
How to sanitize a hydroponic nutrient solution
14:55
No more soluble silicon, amendments are awesome
9:30
Understanding concentration in hydroponics Part 1
12:41