DDR DOS Dual Reservoir - Neptune Systems Most other skimmers

Most other skimmers

and give you more time to make that correction before its too late and to save your aquarium

The two outside holes are 0

Correct pH and buffering capacity

automatic aquarium heater

DDR DOS Dual Reservoir - Neptune Systems Most other skimmersAn elegant and highly refined solution to two part liquid storage, the DOS Dual Reservoir's advanced features are Apex Ready! Features: Large Storage Capacity Each vessel holds up to 2 liters of fluid for a total storage volume of 4 liters Connects directly to your DOS dosing system Engineered with a low center of gravity to help avoid tips and spills Optical sensors provide real time fluid levels to the Apex Fusion dashboard Easily removable lids to