OASE releases larger canister filter

OASE BioMaster 850 external canister filter (cut-away view). Image from https://store.oase-usa.com/.

For the canister enthusiasts among you, OASE North America has released a new, larger external canister filter as part of their BioMaster line. I did a review of the BioMaster Thermo 350 back in January of this year. At that time, the largest filter in the BioMaster line was the 600, rated for aquariums up to 160 gallons. OASE recently released the 850, suitable for 250 gallons. 

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