Hydroponics and Aquaponics  is a subset of hydro culture and is a method of growing plants using  nutrient solutions, in water, without soil.

Terrestrial plants such as cabbage, lettuce, tomatoes, chilies, capsicums and various spices and herbs can  be grown with their roots in the recirculated  nutrient waters from clooected aquaculture fish waste of  general recirculated  water supported by inert mediums, such as perlite, gravel, biochar, mineral wool, expanded clay pebbles or coconut husk.

The advantages in aquaculture (Hydroponics  for freshwater fish and aquaponics for marine species) is the  denitrifying of fish tank waste waters where by the uptake of nutrient ammonia and NH3 is removed from the water column  as it is recirculated and can be thus returned directly to the operating system rather than exchanged for new water thus reducing energy operational costs and consuming natural resources

In General the advantage of Hydroponics and Aquaponics in Aquaculture are
    • No soil is needed for either
    • The water stays in the Aquaculture system and can be reused - thus, a lower exchange water requirement
    • Assisted control of the nutrition levels in their entirety - thus, lower nutrition return to the operational system
    • Environmentally, no nutrition pollution is released into the external environment because of the extended controlled closed system
    • Stable and constant high yields in both aquaculture and agriculture products.
    • Additional  farm income directly  by sales and indirectly by reduced operational overheads in
      the denitrifying pro cess  
    • Clean, Green healthy environment
    • Lower combined operational land footprint.