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One of the biggest fears in any fish
hatchery is having an infection of any variety spread throughout the
system. These concerns are increased when running a centrally
filtered system. In reality, hands, nets, suction hoses and the
like are just as likely to spread contamination from one tank to the
other. With a large number of tanks it is too difficult to
sterilize hoses, nets, hands etc in between use in each tank. This
would add an hour to vacuuming the bottom of tanks alone. As an
aid to reducing the spread of infection and bacterial blooms throughout
the system, I added an Aqua-UV 120 watt ultra-violet sterilizer. I
actually stole it off of my pond where its main function is to reduce
the amount of suspended algae. With the entire flow of water
running through the unit, contact time is probably not long enough to
kill all of the organisms that are suspended in the water. I can
only hope that it is helping :) |
