Our products are lower on the pH scale than many salt-based formulas due to some organic inputs. These inputs allow the plants to naturally buffer the rhizosphere without negatively impacting nutrient uptake. Therefore, we don’t recommend adjusting the pH as long as the solution falls between 3.0-6.0. If the pH falls below 3.0, adjust pH levels using potassium hydroxide; do not use potassium carbonate or potassium silicate. If the pH rises above 6.0, adjust with phosphoric, nitric or sulfuric acid.

Rx Green Technologies’ nutrients are formulated to run in many different systems, including drain-to-waste system, recirculating systems, and drip irrigation systems in soil and soilless media. For best results with recirculating systems, change and clean the nutrient reservoir every 7 days.

Add one part to water, mix thoroughly, then add next part to water. Do not mix two concentrates together before adding to water. This can lead to chemical burns and/or chemical reactions that will change the nutrient profile.

Due to the organic components in products, especially E-PLUS, a biofilm may form in solution if left standing for more than 3 days. This can lead to an unusual smell, clogged drip lines or altered nutrient availability.

The organic components may cause the color to vary over time. This does not affect the products.

Unopened products are stable for a minimum of two years. Once opened, they will remain stable as long as there is no external contamination. If products freeze, they can be thawed and used according to instructions after thorough agitation. Products can sustain temperatures up to 120 degrees without adverse effects.

All raw materials are pharmaceutical-grade, sourced from suppliers in North America.

Our products have a low pH, and are most effective when the pH is unadjusted. The organic acids in our products will cause some upward pH fluctuations as the plant is feeding. This is normal, but expect to see more rapid changes in recirculating and aerated systems. When mixing your solution make sure it is in the ideal range initially, and if it rises above 6.0 in the following days adjust back to the ideal range of 3.0-6.0.

Our nutrients do not hold an Organic Materials Review Institute (OMRI) certification at this time. We believe that a blend of elemental minerals and natural additives provide the best possible nutrition for plants grown in a variety of systems. Organic fertilizers require organisms to break down nutrients into a form that plants can absorb. This can be difficult to stabilize and may produce inconsistent results in a hydroponic growing environment.

Rx Green Technologies’ products do not contain any synthetic growth hormones or regulators, but do contain naturally occurring hormones from plant-derived materials.

We do not recommend leaving nutrients in your reservoir for more than 4 - 7 days in a recirculating system. If you are having problems with your reservoir developing a biofilm or getting murky, you may need to change the solution more often. We recommend adding hydrogen peroxide, hypochlorous acid or quaternary ammonium salts to help stabilize pH and combat pathogens in the nutrient solution.

Because we designed our nutrients for use on cannabis, and we understand cannabis is often smoked, we committed to create products with low levels of heavy metals for cultivating plants that will be safe for human consumption. We did so in two ways: use of pharmaceutical grade minerals and excluding animal-based ingredients. The levels of heavy metals in cannabis grown with our nutrients are essentially non-existent. Visit our website for more information: www.rxgreentechnologies.com

We do not recommend leaving E-PLUS in your standing reservoir for more than 24 hours. The product performs best when mixed and then used immediately.

Due to the organic components in E-PLUS, biofilm may form in recirculating and drip emitter systems if not properly sanitized or pressurized. See our website for more information on best management practices with irrigation systems.

BULK is a PK booster specially formulated for cannabis to improve plant performance, yield and quality. Our exclusive technology allows for calcium and phosphorus to be combined together in one product, reducing the need for additional supplements.

While trichome and oil production are largely dependent on environmental conditions and plant genetics, the nutrients in BULK are essential for the increased metabolism during the reproductive phase. Calcium, potassium and phosphorus are all required in larger amounts during this stage for the biochemical pathways and enzymes used by the plant to produce oils and trichomes.

The inclusion of extra calcium in BULK contributes to density, or “hardness,” by increasing the dry matter content of the finished flowers. Potassium also helps to increase weight and density.

BULK was formulated to give the plant exactly what it needs during flower stage to increase bud density and dry bud weight most effectively. This formula was tested against many other solutions with varying amounts of potassium, and our current formula provided the top results.