Note: A Multi-tank system is composed of five shelves filled with rearing tanks. The fish tank rack is linked to a central REBF (water Recycling with Biofiltration) system. As for the Multi-tressor units, advanced controls can be applied on a Multi-tank system. These are:
Passive control is done without the use of probes or electronic control. Maintaining pH via the dissolution of calcium rocks is an example of passive control.
Static control: Implies a stable set point, actively maintained via a probe and electronic system. The parameter reaches a set point at its maximum rate and automatically remains at that set point via constant monitoring.
Dynamic control: The parameter drops or rises at a given rate (ex. 1.0°C/h), then stabilizes in a plateau.
Cyclic control: The parameter drops or rises and stabilizes in a plateau for a given period of time. After this period, the parameter drops or rises automatically at the same rate to reach and maintain a second plateau. The cycle repeats itself.
Photoperiod: The active control of photoperiod is included in all insulated units.