D-D H2Ocean Compact Auto Top-Up Air Pumps Due to the sheer number

Due to the sheer number of parts (over 750) available via our website

A settled group will move together loosely and may become active throughout the day in a quiet aquarium

Size: 38cm

An air stone is not recommended

or slightly closer to the head

D-D H2Ocean Compact Auto Top-Up Air Pumps Due to the sheer numberD D H2Ocean Compact Auto Top Up This ultra compact smart auto top up unit is simple to mount, easy to use and has twin optical sensors for added security. Features Auto Top Up Unit (ATO) Compact intelligent sensor with twin optics and visual alarm Built in real time failsafe protection No moving parts to fail Small footprint Easy to install Plug & Play Complete with DC Top Up Pump DUAL OPTICAL SENSOR WATER RESISTANT MAGNETIC MOUNT Specifications Power