Hydroponic gardening is the most productive way to grow all varieties of plants, and those raised in a hydroponic system will exhibit maximum yield, flavor, vitamin and essential oil content.

Building a hydroponic water culture garden usingReagan'se
  raft method.

The water culture system is one of the easiest hydroponic gardens for beginners to build. You will need the following materials:

rubbermade tote or similar container
Air pump
Air line
Air stone
Styrofoam sheet 1 1/2 inches thick
Plastic cups
Grow media
Hydroponic nutrient
A pH test kit
Begin by cutting the Styrofoam sheet to a size one inch less than the length and width of your aquarium. Then cut holes just large enough for the cup bottoms to extend 1/2 inch below the Styrofoam. Cut several small root holes in each cup and then fill each cup with grow media (Rockwool or vermiculite are commonly used). Place seeds or seedlings in each cup and position in Styrofoam (seeds will need to be watered manually).

Fill the rubbermade tote or similar container with water and set up the air stone at the bottom. Mix the hydroponic nutrient in the water to the recommended level and adjust pH using the pH test kit.

Building a hydroponic garden like this one requires a few additional touches. Evaporation will cause the nutrient solution to become more concentrated, so added nutrient should be diluted accordingly. Nutrient solution should occasionally be siphoned out completely and remixed.