Our Fish Racks employ an air-driven filtration system utilizing the air-lift principle, thereby creating a very effective mechanical and biological filtration system. An Air Pump is needed to supply (1) to (3) Fish Racks, (1) Linear Air Blower to power (4) to
(10) Fish Racks. Ideally, the pump or blower is centrally located on top of a fish rack or in a DAS service station.
Air flows from the power source through air pipes hanging from the fish racks and into flexible air tubing at each tier. Air-tubing is in place for all filters within a tier. Air flows through the tubing and into the uplift pipe to the bottom of the DLF (Double Layer Foam) Bio Spool. Air flow can be adjusted via air flow valves attached to top of the uplift pipe. (Increasing airflow will increase the water flow). When air bubbles burst, it generates an upward current that draws water in from all sides of the spool within the filter box and into the water uplift pipe.
The DLF Bio Spool consists of two layers with different foam densities, enabling water to travel in a circular motion through the high-density layer initially where it traps waste and subsequently into the low-density layer, thereby slowing the water flow and increasing contact time. Enhanced contact time allows for the growth of beneficial bacteria for clean, healthy water.
The water uplift tube draws the water upward into the water outlet, where it exits the filter box into the aquarium, creating water movement and oxygenation. Slits or openings in the filter box allow water from the aquarium to re-enter the filter box. This water enters the heater chamber first for optimal water contact and a stable water temperature. It then enters the bio chamber recirculating and repeating the process.
Our proven filtration system ensures that fish and plants will thrive in your care. We have used this filtration system in our aquarium systems and fish racks for over four decades. The bio spools are designed for minimal maintenance, enabling the microbial flora to mature and reach its full potential.
MAINTENANCE
Regular monitoring of foam spools is recommended about every six months to identify excessive waste. In the event of excessive waste, remove the water uplift pipe set, (no need to turn off the Air Pump), and pull the spool from the filter box. Place the spool in a bucket containing aquarium water (Never use chlorinated water). Squeeze the spool to remove debris. No need to over-clean as it may hinder the growth of beneficial bacteria. Replace the spool and reinstall the water outlet pipe set.
