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Neptune DOS Dual Reservoir
Each side stores two litres (2L) of fluid
Connects directly to your DOS
Optical sensors inform your APEX when levels are low
Strong, cast-acrylic construction


Description
Introducing the Neptune DOS Dual Reservoir. The Neptune DOS Dual Reservoir (DDR) is a sleek, stylish, and highly functional accessory designed for precise dosing management in your aquarium. Each side of the reservoir holds approximately 2 litres (2000 mL) of fluid-enough to last most saltwater tanks for at least two weeks when dosing calcium and alkalinity, or even longer for other additives. Its attractive design ensures it will stand out in any equipment room, combining form and function seamlessly.
The DDR connects directly to your Neptune DS system, utilising optical sensors to monitor fluid levels accurately. These sensors automatically alert you when your fluid drops to about 20%, preventing dry dosing and potential tank issues. The system is Apex-ready and integrates smoothly with the Apex Fusion dashboard, allowing real-time monitoring of fluid levels and low-level alarms directly from your control interface. This eliminates the need for loose wires or float switches-just plug it in, and it appears in your dashboard.
Constructed from durable cast acrylic, the DDR features push-fit tubing connections for easy refilling and maintenance. Its low-profile design ensures stability, minimising the risk of tipping over. The reservoir is compatible with most common aquarium additives, though it's important to avoid filling it with solvents, fluids containing solvents, methanol, ethyl alcohol (vodka), or any reactive liquids that might damage acrylic or plastics. For such substances, it's recommended to keep them in their original containers and use the DS intake tubing for dispensing.
Features
- Each side stores two litres (2L) of fluid
- Connects directly to your DOS
- Optical sensors inform your APEX when levels are low
- Strong, cast-acrylic construction
- Low-profile - won't easily tip over
- Easy to refill
- Push-fit tubing connections
- Use for 2-part (Alk/Cal), additives and other applications
Specifications
| Brand | Neptune Systems |
| Size (Approx.) | 10.5 x 8.5 x 5.5 |
| Fluid Capacity (Approx.) | 2000ml per side |
| Weight (Approx.) | 2 pounds |
| Requires | Apex, Apex Lite, or Apex Jr. and DS to operate sensors |
Package Contents
- 1x DDR with sensors and cable
- 1x 4 meters of tubing
- 1x Getting Started Guide
| Free Shipping | No |
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