RAS Water Quality Awareness - Online Course

This is a self directed course that students undertake in their own time using our virtual learning environment. You will receive an enrolment form to complete and upon returning this form to us we will send you details of the virtual learning environment.

Topics covered include:

• Background: Recirculating compared to flow-through aquaculture systems.
• Fish water quality requirements: oxygen, temperature, pH, salinity, ammonia, nitrite, and nitrate.
• Principals of recirculation systems: Nitrifying & denitrifying bacteria, start-up procedures, monitoring, bio-towers, fluidised beds, and filtration.
• Common problems & what to do: crashes, oxygen / carbon dioxide, power cuts, clogging, ozone / UV, chemicals (disinfectants), and antibiotics
• Fish health problems & treatment in recirculation units: ammonia poisoning / brown blood disease, bacterial gill disease, fungus, carbon dioxide, low oxygen, pathogenic bacteria, and heavy metals.