Mixing Rhodos and Gen200 Control in 3 steps
Water quality. Start with clean water, preferably osmosis water. If you use tap water, make sure the starting EC is below 0.4 mS/cm.
Step 1. Add Gen200 Control (15 ml per 100 L) to the water and mix well.
Step 2. Dissolve Rhodos Base according to the schedule below. Make sure it is 100% dissolved before you go to the next step. Warm water (20–25 °C) dissolves the powder faster.
Step 3. Dissolve Rhodos Grow (vegetative stage) or Rhodos Bloom (clones and flowering). Whether you use a mixer or a pump, always make sure the powders are 100% dissolved before you water your plants.
Check EC and pH. Measure the EC and adjust the pH to the range for your growing medium and phase (see the table below) before watering.
Application. Water your plants directly from the reservoir, with every watering, for a constant supply of nutrients. Using a feeding computer? Contact us for the Rhodos stock solution schedule.
Growing systems. Rhodos is formulated for hydroponics, aeroponics, coco and soil.
Rhodos and Gen200 Control dosage per 100 L of water
The table shows how much of each product to add to 100 L of water in each phase. Dissolve the products in the order listed, from top to bottom.
| Dissolve in order | Clone | Vegetative | Bloom | Flush |
|---|---|---|---|---|
| 1. Gen200 Control | 15 ml | 15 ml | 15 ml | – |
| 2. Rhodos Base | 65 g | 100 g | 100 g | – |
| 3. Rhodos Grow | – | 190 g | – | – |
| 3. Rhodos Bloom | 125 g | – | 190 g | – |
| EC (mS/cm) | 2.0 | 3.0 | 3.0 | < 0.1 |
| pH hydro, aero, coco | 5.8 | 5.5–5.8 | 5.8–6.2 | 6.0–6.4 |
| pH soil | 5.8 | 5.9–6.2 | 6.0–6.4 | 6.0–6.4 |
Source: the Rhodos grow schedule (PDF). Working with a different volume? The Rhodos nutrient calculator converts the schedule to your own reservoir.
Step-by-step schedules per growing medium: coco feeding schedule, hydroponic feeding schedule (also for aeroponics) and soil feeding schedule.
How to use Gen200 Control
| In the nutrient solution | 15 ml per 100 L of feeding water, with every watering. Always add it to the water first, before other nutrients. |
| As a foliar spray | 1 ml per litre of water, 1–2 times per week. See How to Use Gen200 Control as a Foliar Spray. |
| To limit vertical stretch | 3 ml per 10 L in the nutrient reservoir. |
Shake well before use and keep out of reach of children. Gen200 Control can be used in all growing media and combined with all fertilisers. Source: Gen200 Control product datasheet.
Flushing before harvest
We recommend a flush run before harvest. In the Rhodos schedule the flush uses plain water with an EC below 0.1 mS/cm and a pH of 6.0–6.4, without Rhodos or Gen200 Control.
Safety and storage
Always wear protective gloves and eyewear when handling and mixing fertilisers. Store Rhodos in the original closed container in a dry place between 8 and 27 °C; stored properly, it has a five-year shelf life from the production date. Full specifications and EAN codes are on the specifications page.
Still have questions about how to use our products?
Take a look at the frequently asked questions
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