The two different types of Hydroponics are the solution and the medium cultures. In a solution culture there is no solid medium other than a nutrient solution to supply nourishment to the plants. The medium culture calls for presence of a solid medium though.

There are 3 types of solution culture, the static (nutrient solution is not agitated) solution culture, continuous flow culture and aeroponics solution culture. The different types of medium used in medium culture include sand, gravel and the mineral wool or rockwool. Sub irrigation method and top irrigation methods are used to supply nutrients and water for plants growing in medium culture.

Aeroponics is a method that allows growing of plants in a system that enables the root systems to be in an environment concentrated with atomized droplets of nutrients. It calls for no substrate and plants receive lavish aeration in this method.