Neptune Apex A3 Junior Aquarium Controller Freshwater & Planted Gravel providing controlled airflow for freshwater

providing controlled airflow for freshwater and marine aquariums up to 55 gallons

The Signal goby obtains nearly all its food from within the sand

5-inch transfer bulkheads move water into the external chamber

Output size: 40 mm

helping make the food accessible to fish feeding below the surface

Neptune Apex A3 Junior Aquarium Controller Freshwater & Planted Gravel providing controlled airflow for freshwaterNeptune Apex A3 Junior Aquarium Controller The Neptune Apex A3 Junior Aquarium Controller is an entry level Apex monitoring system for aquarists who want Neptune's core temperature, pH, leak, and water level monitoring with room to expand into full equipment control later. Apex A3 Junior Monitoring with Upgrade Potential The Apex A3 Junior is designed for aquarists who want the protection and visibility of an Apex system without starting with the full