At Growth Science, we are dedicated to creating products that help your plants reach their fullest potential. We hope through using our products, we’ll help you grow in the greatest sense of the word!

Feel free to reach out to us for sales inquiries from retail to wholesale. Need help using our products? First, try looking at our feeding charts or view our FAQ below for the most common questions, or reach out to us by phone or contact form to receive next level grower support from our team of expert cultivators.

To contact us directly, please call (831) 600-8679 or email


What temperature should I keep my reservoir?

Ideally reservoirs will not be kept in the same room as flowering plants. We want to keep our nutrient solutions away from heat and direct light. The temperature of the liquid itself can range from 62° F to 75° F. At too low of a temperature, the solution can slow plant growth and lead to root issues, whereas at too high of a temperature the solution cannot hold as much O2 and roots may become weak and prone to pathogen attack. The reservoir must be aerated as well.

What is the ideal pH to feed my plants?

This depends on the medium that you are growing in. Various nutrients become more soluble at differentpH. In a hydroponic setting, feeding at a pH of 5.8 is ideal for optimum nutrient availability. When growing in soil, the standard pH is 6.2. There can be slight fluctuations either way to allow for various nutrients to become more available.

What is the proper order to mix my nutrient reservoir?

You will start by mixing Strength. Strength is a potassium silicate based product and as such has a highpH.By adding this to your reservoir first, it will dilute the high pH solution and prevent nutrients from precipitating out of solution. After Strength is fully mixed, add the appropriate amount of Base A, and allow to mix into solution. Then add Base B followed by whatever else you are feeding. If adding a CalMag product, add this after Base A

Do I follow the same feed schedule for all sizes of plants?

The short answer to this is ‘no’. We provide a general feed schedule and adjust it for different media. However, for both lines,this is just a starting point. However,due to the multitude of variables when growing a crop, certain strains may require more nutrients whereas others are less ‘hungry’. Environment can also affect this. In dry, hot climates, growers will want to increase the amount of Strength to make plants less susceptible to environmental stresses. Feel free to contact us to help develop a customized feeding chart to optimize your grow. As a rule of thumb, in flower, for plants that are over 4 feet, for every foot that it is over, increase the Base B and Rock Solid by 1 mL per gallon. For instance, if you are growing 5 foot tall plants and were feeding a 7-14-7 feeding regime, you would bump that up to 7-15-8. You do not want to exceed 8 mL per gallon of Base A.

What is the preferred media to use with this line?

This is really a matter of preference. We have growers of all sizes that are using a variety of different media. We have seen successful grows with everything from soil to rockwool, expanded clay, coco, soilless potting media (Sunshine/Pro Mix) and everything in-between. This is an extremely versatile nutrient line that has proven success utilizing all sorts of growing techniques

How often do I need to feed my plants?

Unfortunately, there is not a ‘one size fits all’ answer to this. It really depends on a number of factors. This depends on the media that you are in, size of plant,temperature and humidity, microbial community, etc. That being said, we have had success feeding 1x per week and we have had success feeding with every watering. The more amendments and nutrients that are already in your media, the less often you have to feed. Optimum results have been observed growing in a living soil or heavily amended soil and feeding once per week. This will stimulate your soil biology and encourage them to breakdown the organic materials present in your soil. Growth Science Organics will feed your plants and feed your soil biology! Contact us for more specific feeding schedules custom to your grow.

What species of fish do you use?

The main fish that we source for our fish hydrolysate is a fish from the shark family. This is a saltwater fish (dogfish). Thisfish is sustainably harvested year-round to allow us to supply clients with a consistent product year-round. We leave the bones and oils in the fish during our unique enzymatic digestion process to allow for a more diverse nutrient profile. We do not use high temperatures to digest our fish, which allows for proteins and other constituents to remain intact.

What is the best soil to use with Growth Science Organics?

There are so many quality soil products on the market and seemingly more coming out every day. Most soils will be coco and peat based, with compost and other organic amendments added. Some of the soils that have been used in trials with great success are Ocean forest (Fox Farm), Happy Frog/Ocean forest mix, 707 (RootsOrganics), Roots Original (Roots Organics), Nectar #4 (Nectar for the Gods), and many others. The differences in the bagged soils is the quality of the input materials. Be sure to vet any new products and contact the companies to ask about the sourcing of their ingredients.

Where do you source your materials?

We have suppliers from all over the world. We try to source local materials that are sustainable whenever possible. We vetted many suppliers while developing our products and chose the highest quality materials we could find.

What is the best medium to use with the organic line?

Although Growth Science Organics can be used with most media, optimal results have been achieved when using this product line with an amended living soil. Thisproduct line was not designed to be used with rockwool or expanded clay systems.

How long can the organic line sit in a reservoir?

We do not recommend store nutrients diluted, however, if using a reservoir, make sure to use a recirculating pump and keep the solution well aerated. The organic line has been tested in a reservoir with no decline in efficacy for up to three weeks. However, we recommend exchanging out the reservoir on a weekly basis and, asalways, monitoring the pH of the reservoir.





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