Neptune Apex DDR DŌS Dual Reservoir available at Coral Passion in Essex

Neptune Apex DDR DŌS Dual Reservoir

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Please note: this is not a stock item, delivery usually fulfilled within 5 working days.

This attractive fluid containment system stores your dosing fluids in style and tells you when it’s time to refill! Each side stores two litres (2L) of fluid Connects directly to your DŌS 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.


The DDR has great style and will stand out in anyones equipment room. But it’s not just about style. It may not look like it, but each side of the reservoir holds an ample two liters (2000 mL) of fluid. For most saltwater aquariums that are dosing Calcium and Alkalinity to their aquariums, this amount is more than enough to last at least two weeks. If you were dosing other additives it might last months before needing a refill.

MORE CONNECTS TO YOUR DŌS The DDR is the only dosing container on the market that connects electrically to your DŌS and uses optical sensors that alert you when your fluid has approximately 20% remaining.

MORE READY FOR APEX FUSION Although not required, the DDR interfaces directly into your Apex Fusion dashboard. See in realtime your fluid levels and get an alarm when a reservoir runs low.

OPTICAL SENSOR ALERTS One simple connection links the DDR to the DŌS. No worries about fooling around with loose wires, float switches, etc. Just plug it in and it will show up in your Apex Fusion Dashboard. Specifications 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 DŌS to operate sensors Package includes: DDR, 4m of DŌS tubing * Use only with fluids compatible with acrylic.

Not to be used with solvents and other fluids that may be reactive with acrylic such as methanol. If you are in doubt, please contact the manufacturer of the fluid to see if it will react to acrylic.

Further information can be found on Neptune System's website: Click here

See our Return & Refund Policy here