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Tropica's CO2 System BIO Refill pack is a REFILL for the CO2 System BIO
which is an inert volcanic rock that helps with biological filtration growth and will not buffer pH
Easy to install using (included) suction cups or hanging clips
They prefer temperatures from 75–82°F (24–28°C)
Eheim Classic 250 Canister Filter Aquarium Kit Tropica's CO2 System BIO RefillThe Eheim classic 250 canister filter comes ready for easy installation. It includes 1x activated carbon foam pad, 1x fine and 1x coarse filter pad, complete setup kit for inlet and outlet sides and a hose (12 16mm). Eheim ceramic rings and filter media is included as well. It is also quiet and discrete. Filter Specifications low energy consumption 8 watt rated for aquariums up to 65 gallons flow rate of 116 gallons per hour
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