Neptune Systems PM3 Probe Module - Dissolved Oxygen & Temperature Submersible Pumps and uses grounded 3 prong

and uses grounded 3 prong receptacles for safety

Quality heater made in Europe using superior components and construction

Multiple units may be used to achieve gallonage of aquaria

True red glass

25 in x 5 in x 2

Neptune Systems PM3 Probe Module - Dissolved Oxygen & Temperature Submersible Pumps and uses grounded 3 prongMany marine aquarists only give the oxygen content in their aquarium water a passing thought, not fully understanding how the level of the Dissolved Oxygen (DO) in their tanks can affect their entire tank population. In one way or another, everything (fish, invertebrates, corals, algaes, bacteria) in the oceans and in marine aquariums react with oxygen. Most of the living beings of this planet require oxygen in order to metabolize nutrients. Fish,