Solve your problems

  • Low yields
  • Nutrient deficiencies
  • High nutrient costs
  • Inconsistent results

Services

  • Hourly consultation
  • Nutrient solution design
  • Growing setup optimization
  • Custom crop monitoring automation

HydroBuddy and Blog

Through my blog I also share my insights and experience in hydroponic culture. From how to properly use and calibrate sensors to the peer reviewed effects of nutrient additives I strive to make this blog a reliable source of high quality practical information for both the commercial hydroponic grower and the enthusiast alike. This blog has been ranked as one of the top 50 hydroponic blogs on the internet by feedspot.

Welcome to my site!

I provide nutrient related consultation services for the hydroponic industry. My name is Dr. Daniel Fernandez and I have worked as a consultant for the past 5 years in the hydroponic industry. I have a bachelor’s degree in chemistry and a masters and Ph.D. in nanoscience and nanotechnology. With my experience in nutrient solution chemistry and management I hope to help you take your crops to the next level.

Our services

I provide different types of services to suite your particular needs.

I understand that not everyone needs the same type of assistance and I have therefore designed three specific type of services depending on your needs .

  • An hourly consultation service where you can ask any questions and get answers to help you solve problems (150 USD/hour).
  • A service for the formulation of a specific hydroponic nutrient recipe for your particular needs coupled with guidance in preparing this formulation.
  • An on-going consultation service where you will have me available to answer questions and help guide you through your nutrient needs as your crop or hydroponic project progresses.

Hydrobuddy - Open source software for Nutrient Formulations

This site hosts HydroBuddy – a software I programmed – which is the most popularly used open source calculator for the formulation of hydroponic nutrient solutions and fertilizers. This software has been helping hobby and commercial growers prepare their own fertilizer formulations from 2011 with more than 10 thousands downloads in its lifetime. There are also many peer reviewed academic publications that have used hydrobuddy. Feel free to use or modify this software for your nutrient preparation needs. It’s free and OpenSource! Get the software here.

Latest blog posts

How much Phosphorous are you adding to your solution to adjust pH?

Phosphoric acid is one of the most commonly used pH down agents in hydroponics. This is because phosphoric acid is available in high purity, is easier to handle and has lower cost. However, phosphorous is a significant plant macro-nutrient as well, and substantially changing the level of available P in a nutrient solution can have […]

How to deal with nutrient solution waste in hydroponics

Hydroponic nutrients contain a wide array of chemicals that are fundamentally contaminating to water sources and can heavily contribute to eutrophication. Both run-to-waste and recirculating systems eventually generate significant amounts of waste as nutrient solutions cannot be infinitely used – even when recirculation is done – due to the many ways in which a solution […]

Factors limiting the life of a recirculating hydroponic nutrient solution

Hydroponic systems that use recirculating nutrient solutions can be more efficient in terms of water and nutrient usage. However, despite how good the management of a solution is, there are certain factors that will limit the time that a solution can be maintained without performing a full change of the entire recirculating nutrient solution within […]

Preparing your own low cost A+B generic hydroponic nutrients at a small scale from raw salts

In a recent post about the cost of custom hydroponic nutrients, I talked about the cost of preparing nutrients equivalent to those of a commonly used brand (general hydroponics Flora series) at a small scale. We saw that the cost savings are not very significant when doing this with small amounts of salts, given that […]

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