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Porous sintered quartz bio-rings for excellent biological filtering
Aquarium with plastic frame with glossy finish for a perfect visual
Avoid direct sunlight to prevent algae
Thanks to this natural substrate
Sera CO2 Solenoid puppy harness Porous sintered quartz bio-rings forEasy nocturnal CO2 supply switchoff In combination with a timer, the sera CO2 solenoid valve for auto switch precisely regulates CO2 switchoff during the night or at any other time. It is suitable for installation into present and new pH controlled CO2 fertilizing systems. A CO2 pressure reducing valve must be installed between the sera CO2 solenoid valve and the CO2 gas bottle.
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