Hailea Air Pump Aco 5503 HANG ON BACK FILTER All gravel is specially graded

All gravel is specially graded to 2mm–4mm which is the optimum size for aquarium use

Readings are stored for 35 days and are automatically uploaded once reconnected to a PC

The Aqua One AquaBac is a low profile internal filter for freshwater aquariums and provides a combination of biological

If you room fluctuates more than the 5°C of the set temperature of the heater

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Hailea Air Pump Aco 5503 HANG ON BACK FILTER All gravel is specially gradedHailea Air Pump 5503 Silent Design Super Quality The product possesses an advanced air compressing system, damping system and multilevel muffler which is extremely low in noise The air output can be adjusted freely Manual air flow adjusting control The ACO air pump adopts special artificial rubber to keep a steady air output and pressure that can be adjusted freely The structure is compact No greasing or lubrication required Clean or replace air tube,