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How To Make A Homemade Hydroponic System

Homemade Hydroponic System

This is a guide to making a homemade hydroponic system. It is a static solution, a lettuce raft-type system.

This style was chosen because it is a relatively cheap and easy system to make while still offering flexibility to grow and allowing you to grow multiple plants at once. It’s a great system for growing organic vegetables in a comfortable setting without worrying about pests or weeds.

What Do You Need For A Hydroponic System?

  • A container to house your reservoir of nutrient solution. This can be a fish tank or some other large, rectangular container.
  • A piece of Styrofoam that is larger than the top of your container. It should be around 1 inch thick, but this does not need to be exact.
  • A small knife, such as a Swiss Army knife, to cut the Styrofoam.
  • Net pots that will house your plants.
  • A nutrient solution. These are available for purchase, and a recipe for making one will be supplied later.
  • An air pump, air tube, and air stone. These will be used to make sure there is always sufficient oxygen in your nutrient solution.
  • The plants or seeds you wish to grow.

How to Assemble a Homemade Hydroponic System

  1. First, we must prepare our container to hold the water reservoir. The container must be opaque (does not let any light in). Sunlight will encourage algae growth, stealing oxygen and nutrients from your plants, stunting their progress and possibly even killing them. If your container is transparent (such as a fish tank), spray painting it black or covering it with a garbage bag should do the trick.
  2. Next, we need to prepare our raft. Take the Styrofoam, and using your knife, cut it into a rectangle about ¼ an inch smaller on each side than the opening of your container. So let’s say you used an aquarium with an opening 12 inches x 14 inches. You would cut your Styrofoam into a rectangle 11 ¾ inches x 13 ¾ inches.
  3. Now you need to cut holes in the Styrofoam for your net pots. Place them on the Styrofoam and use a pencil to trace around their base. Keep some distance between them to maintain the Styrofoam’s structural integrity and give your plants some space to receive sunlight and grow. Use your knife to cut out the circles where your pots will sit.
  4. Near one of the ends of the Styrofoam, cut a small hole that will allow you to run an air tube into the water.
  5. Place the air stone at the bottom of your container/tank. Place the air pump outside the container, and connect the two with the air tube.
  6. Fill the container up with water/nutrient solution. Fill most of the container, but leave space for your raft.
  7. Place your Styrofoam raft on top of the water in your tank. Allow the air tube to fit through the small hole you cut.
  8. Put your plants and the chosen growing medium into the net pots.
  9. Place the net pots into the holes in the Styrofoam.


I am by no means an expert in every aspect of this stuff. I plan to learn, and when possible, enlist the help of experts in various fields to come together and offer their knowledge. In a few years, I dream that this site will be a virtual survival encyclopedia and allow a total novice to come on here and be supplied with everything they need to prepare for anything.

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