I grew some hydroponic celery this summer. Nature taught me some important lessons too.

The green spongelike material I grow the plants in is Grodan rockwool.

Nutrient Recipe
2g MasterBlend Tomato 4-18-38
2g Calcium Nitrate 15.5-0-0
1g Epsom Salt
1 Gallon or 3.8 Liters hose water

Filmed on an iPhone6
Edited with iMovie 10.1.5
Voiceover recorded on a Blue Snowball ICE

Music is from the second movement of Beethoven's 7th symphony.