Frequently Asked Questions About Reefertilizer

Refunds, Returns, and Replacements

Refund Policy
We stand by the quality of our nutrients but sometimes they might not work for your particular situation. If you and your plants aren’t happy contact us. We can refund your order in full if it’s within 60 days of the order date.
Any unused product must be returned to us before approving the refund.

Complete grow tent kits cannot be returned or exchanged.

Return Policy
If you would like to return any unused product we can provide a full refund within 60 days of the order date. Please contact us and return your unused product to the address on the original shipping label. There’s no restocking fee but you would have to pay for shipping.

Replacement Product
Sometimes things get damaged during delivery and that’s no good. If this is the case please contact us and provide a photo of any damaged/defective product. We can then send you a replacement or refund once approved.

Late or Missing Refunds
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us.

Shipping Delays and Refunds
We can’t always guarantee your order will arrive in 3 days. Delays can be caused by many things out of our control, in these cases we will not be able to provide refunds on the actual cost of shipping. In very extreme cases we can refund shipping costs if your order doesn’t arrive in a reasonable amount of time.

Questions About Reefertilizer Nutrients

What’s Your Feeding Schedule?
We have created an easy to use feeding calculator that will help you determine the weekly dose for all your plants.
Reefertilizer Feeding Calculator

Is Reefertilizer organic or synthetic?
Our Start soil conditioner is organic. Grow and Bloom are synthetic fertilizers containing chelated elements that are soluble in water. Synthetic fertilizers make essential nutrients available to the plants much faster than organic.

Is Reefertilizer for Indoor or Outdoor Plants?
Reefertilizer nutrients can be used for both indoor and outdoor grown cannabis plants. Grow and Bloom can be used in hydroponic, aeroponic, and DWC grow systems.

What’s in Reefertilizer nutrients?
Our Grow and Bloom fertilizer are made up of organic and inorganic elements. Our fertilizer is chelated, meaning that the micronutrients and macronutrients are bonded in such a way that they are immediately available to plants and don’t need time to breakdown like with other fertilizers.
Compared to common fertilizers like Miracle-Gro, ours are crafted for the specific needs of cannabis plants. This means your using less fertilizer overall but getting the most out of it.
Our Start soil conditioner is made from kelp meal and mycorrhizal spores used exclusively for agriculture worldwide. Both are renewable and organic.

How long does a bag last?
We find that our Trio is enough to grow about 6-8 plants.
Try out our feeding calculator to figure out how much fertilizer you will need.
Our powder fertilizers can be stored long-term if they are kept dry.

I’ve been using another fertilizer for some time and I’m looking for something that might suit me better.
Reefertilizer was made for simplicity. A successful grow may be done with just the 3 products. They can be used in conjunction with other fertilizers, but we recommend experimenting with test plants first.

Can this can be used both as a soil amendment and a water-soluble fertilizer?
Our start product is an organic soil amendment, it is not designed to be used for hydroponic grows.
Our Grow and Bloom products are both water-soluble chemical fertilizers, they are not organic.
Grow and Bloom are not slow release fertilizers, adding it directly to the soil might not meet your expectations.

How much fertilizer should I feed my plants?
For a soil grow watering once a week, it’s good to begin with a low dosage when the plants are young. 1 scoop of Grow in 4 litres of water is a good start for the first week. Once the plant is larger you can starting adding more Grow to your water. Up to 2 scoops for every 4 Liters of water.
For the Bloom stage, you can use 1-2 scoops for every 4 litres of water. When your 3-4 weeks away from harvest, the plants soil should be flushed of excess nutrients. This improves the taste of the bud. Leaching the soil can be done with plain water or 1/2 scoop of Bloom or Grow in 4 litres of water.
Depending on the size of your planter and how often you water your plants, these dosages may vary.
You will want to give each plant enough nutrient solution to fully saturate the soil around the roots.
A common 5 gallon planter needs about 4L (aprox. 1 gallon) of water in most cases.

Will Reefertilizer work with my hydroponic / aeroponic setup?
Grow and Bloom will both work in a hydroponic or aeroponic system. You may add the appropriate amounts to your reservoir.

Will I have to adjust pH?
Depending on your water source, Reefertilizer will affect your pH slightly. You should test the pH of your water at every feeding. Make sure it’s in the 6 to 6.8 pH range for soil grows. 5.5 to 6 pH for hydroponic grows.

I normally use a liquid fertilizer, what makes powder fertilizer different?
Both have their pros and cons of course. Both types will need to be pre mixed with a small amount of water before being added to your larger water vessel. Mixing a few ounces of warm water with your powder fertilizer will help it dissolve quickly.
Powder fertilizers need to be stored in an air tight container. Our bags have a high quality resealable strip, and are air tight when sealed securely.
Chemical powder fertilizers can contain higher ratios of NPK which means a little can go a long way, but if not used carefully could harm your plants. Also flushing before harvest is necessary.

Your feeding schedule is for 4 liters of water, what if I want to use less?

For one plant, 1 liter of water per feeding is all you need in most cases. Our feeding schedule assumes you are feeding 4 plants, thus 4 liters for our mixture. We made a chart showing how much to mix into 1 to 4 liters of water for feeding. We did the math so you don’t have to.

small grow feeding chart

If you need something a little more robust than the chart above, check out our feeding calculator.

Do you have COA (Certificate of Analysis) documents for Reefertilizer?

Yes, we do! You will notice that we have some of the lowest levels of heavy metals in the cannabis nutrient industry and meet Health Canada standards.

Reefertilizer Certificate of Analysis – Start, Grow, & Bloom

Do you have MSDS documents for Grow and Bloom?
We have material safety data sheets for Grow and Bloom available as pdf files.

Reefertilizer Grow – MSDS Sheet
Reefertilizer Bloom- MSDS Sheet

Privacy Policy

Reefertilizer Privacy Policy

This Privacy Policy describes how your personal information is collected, used, and shared when you visit or make a purchase from (the “Site”).


When you visit the Site, we automatically collect certain information about your device, including information about your web browser, IP address, time zone, and some of the cookies that are installed on your device. Additionally, as you browse the Site, we collect information about the individual web pages or products that you view, what websites or search terms referred you to the Site, and information about how you interact with the Site. We refer to this automatically-collected information as “Device Information.”

We collect Device Information using the following technologies:

– “Cookies” are data files that are placed on your device or computer and often include an anonymous unique identifier. For more information about cookies, and how to disable cookies, visit

– “Log files” track actions occurring on the Site, and collect data including your IP address, browser type, Internet service provider, referring/exit pages, and date/time stamps.
– “Web beacons,” “tags,” and “pixels” are electronic files used to record information about how you browse the Site.

Additionally when you make a purchase or attempt to make a purchase through the Site, we collect certain information from you, including your name, billing address, shipping address, payment information (including credit card numbers, and bitcoin account numbers), email address, and phone number. We refer to this information as “Order Information.”


When we talk about “Personal Information” in this Privacy Policy, we are talking both about Device Information and Order Information.


We use the Order Information that we collect generally to fulfill any orders placed through the Site (including processing your payment information, arranging for shipping, and providing you with invoices and/or order confirmations). Additionally, we use this Order Information to:
Communicate with you;
Screen our orders for potential risk or fraud; and
When in line with the preferences you have shared with us, provide you with information or advertising relating to our products or services.

We use the Device Information that we collect to help us screen for potential risk and fraud (in particular, your IP address), and more generally to improve and optimize our Site (for example, by generating analytics about how our customers browse and interact with the Site, and to assess the success of our marketing and advertising campaigns).


We share your Personal Information with third parties to help us use your Personal Information, as described above.  We also use Matomo and Google Analytics to help us understand how our customers use the Site, both are GDPR compliant.
You can read more about how Google uses your Personal Information here: You can also opt-out of Google Analytics here:

Finally, we may also share your Personal Information to comply with applicable laws and regulations, to respond to a subpoena, search warrant or other lawful request for information we receive, or to otherwise protect our rights.

As described above, we use your Personal Information to provide you with targeted advertisements or marketing communications we believe may be of interest to you. For more information about how targeted advertising works, you can visit the Network Advertising Initiative’s (“NAI”) educational page at

You can opt out of targeted advertising by:


Additionally, you can opt out of some of these services by visiting the Digital Advertising Alliance’s opt-out portal at:

Please note that we do not alter our Site’s data collection and use practices when we see a Do Not Track signal from your browser.

If you are a European resident, you have the right to access personal information we hold about you and to ask that your personal information be corrected, updated, or deleted. If you would like to exercise this right, please contact us through the contact information below.

Additionally, if you are a European resident we note that we are processing your information in order to fulfill contracts we might have with you (for example if you make an order through the Site), or otherwise to pursue our legitimate business interests listed above. Additionally, please note that your information will be transferred outside of Europe, including to Canada and the United States.

When you place an order through the Site, we will maintain your Order Information for our records unless and until you ask us to delete this information.

The Site is not intended for individuals under the age of 21.

We may update this privacy policy from time to time in order to reflect, for example, changes to our practices or for other operational, legal or regulatory reasons.

For more information about our privacy practices, if you have questions, or if you would like to make a complaint, please contact us by e-mail at or by mail using the details provided below:

Suite #M257 1554 Carling Ave. Ottawa, ON K1Z 1G3