As with all hydroponic systems, the nutrient strength and feed schedule should reflect your environment.
If you’re using clay pebbles and the environment is hot and the humidity is low, these hot and dry conditions will cause the plant to use more water and less nutrient, causing the nutrient strength to rise in the reservoir. In these circumstances we recommend setting the nutrient strength lower than usual to account for rising strength. In these conditions the plants should be fed more often, up to once per hour.
The same room during cooler conditions, with a higher humidity, will mean higher nutrient strengths can be used and the number of feeds can be reduced. Always consider the effect that the environment will have on your plants and adjust your feeding strategy accordingly.