Fast Aquatics

Neptune Systems makes the Apex aquarium controller, the de facto standard for reef tank automation. The Apex line includes the base controller, Trident (automated alkalinity/calcium/magnesium tester), DOS (peristaltic dosing pump), ATK (auto top-off kit), Cor (DC return pump), and a wide range of expansion modules.

Known for

Apex controllers

Apex Classic, Apex EL (entry-level), and Apex Jr. The full-fat Apex supports 24+ outlets, dozens of probes, and infinitely programmable rules via APEX programming language.

Trident automated water testing

Pulls a sump sample every 24-72 hours and runs alk/cal/mg titration. Logs to Apex Fusion cloud. Eliminates manual testing for the parameters that matter most.

DOS dosing pump

Two-channel peristaltic dosing pump. Pairs with Trident to auto-correct alk/cal/mg out of range. The standard for hands-off reef chemistry management.

Pros and cons

Pros
  • Largest module ecosystem in aquarium automation
  • Apex Fusion cloud is mature and reliable
  • Strong third-party developer community
Cons
  • Steep learning curve - APEX programming is text-based and requires hobby forum reading
  • Premium pricing with rapidly growing parts cost

Common competitors

Hydros (Coralvue) · GHL ProfiLux · Reef Kinetics ReefBot