- Powder Nutrients that were recommended.
- Leafy Asian Vegetables and their nutrition in hydroponics
- Info on PAR
- Tomato quality is more dependent on temperature than on photosynthetically active radiation
- Explanation of Osmotic pressure from the hydro subreddit
- Diagnostic Flow-Chart for common nutrient deficiency symptoms
- 101 article on types of lighting
- Book: Hobby Hydroponics
- Image: Relative Solubility of Nutrients in pH (source: PLANT PHYSIOLOGY, Third Edition, Figure 5.4, 2002 Sinauer Associates, Inc.
- Image: Nutrient Solubility (same info as the image above, a little different in the recommendations).