Neptune Variable Speed/Dimming Module (VDM) Air Pumps They like to eat snails

They like to eat snails

observation

Useful for weekly phosphate monitoring

or supporting fish skin recovery

then squeeze the handles to snap the parts together or separate them as needed

Neptune Variable Speed/Dimming Module (VDM) Air Pumps They like to eat snailsNeptune Variable Speed Dimming Module (VDM) The Neptune Variable Speed Dimming Module (VDM) expands a compatible Apex system with four 0 10V variable voltage outputs and one serial port outlet for Apex Ready lighting control. VDM Lighting and 0 10V Control Expansion The VDM is designed for Apex users who need additional variable speed or dimming control outputs. It can control compatible equipment that accepts the common 0 10V interface and can also