I used to get all paranoid whenever my fish were cut or scraped up--which is all the time. Their little injuries heal fast, and I credit the UV sterilizer for keeping the pathogens down in the tank.
pacu mom;3788592; said:The flow rate through the UV sterilizer is critical. The larger the UV sterilizer, the faster the flow rate can be for maximum effectiveness. On our 300 gallon tank, we are running a 40 Watt sterilizer. The recommended flow rate for the unit is about the flow rate for the FX-5 we use for redundant filtration.....So we connected the UV sterilizer to the return line of the FX-5. We let the FX-5 push the water through the UV sterilizer and return it to the tank.
If you want to save yourself some hassle, get a UV sterilizer with a recommended flow rate that matches your FX-5, and use your FX-5.
With floor-to-ceiling picture windows and two skylights, our tank is in sunlight. We quickly developed a green water problem.
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The green water quickly cleared up with the UV sterilizer
![]()
Pentair Aquatics UV sterilizer connected to the FX-5
![]()
pacu mom;3788592; said:The flow rate through the UV sterilizer is critical. The larger the UV sterilizer, the faster the flow rate can be for maximum effectiveness. On our 300 gallon tank, we are running a 40 Watt sterilizer. The recommended flow rate for the unit is about the flow rate for the FX-5 we use for redundant filtration.....So we connected the UV sterilizer to the return line of the FX-5. We let the FX-5 push the water through the UV sterilizer and return it to the tank.
If you want to save yourself some hassle, get a UV sterilizer with a recommended flow rate that matches your FX-5, and use your FX-5.
With floor-to-ceiling picture windows and two skylights, our tank is in sunlight. We quickly developed a green water problem.
![]()
The green water quickly cleared up with the UV sterilizer
![]()
Pentair Aquatics UV sterilizer connected to the FX-5
![]()
crr;3801777; said:Since UV lights serve a wide range of purposes, manufacturers can get away with making some pretty wild claims...