Locating production inside a building offers several advantages such as stable water conditions, protection from predators, the ability to control photoperiod, security from vandalism, and better overall management. Because of the high stocking densities in closed systems, it is necessary to maintain close control of several water quality factors. The system's temperature is an important parameter which must be maintained at a stable value.
Fish grow fastest when maintained within a narrow temperature zone.
Also, heating energy is saved by maintaining stable temperatures. A wide variety of types of structures can be used for ornamental fish production. These structures range from pond covers and plastic covered greenhouse structures to insulated frame buildings. All rights reserved. Aquaculture bio-filters and aquarium biofilters are biological filters.