Neptune Systems - Apex Jr. System A3 Conditioners & Minerals this plant is best suited

this plant is best suited for larger aquariums

or those who prefer tactile control

increased measurement stability

but even small amounts can be extremely toxic to fish

Supports approximately 2 months of nitrate and phosphate testing

Neptune Systems - Apex Jr. System A3 Conditioners & Minerals this plant is best suitedThe Neptune Systems Apex Jr. System A3 delivers powerful and affordable aquarium monitoring in a streamlined packageperfect for hobbyists who want essential automation and protection without the complexity of a full controller system. Designed as an entry point into the Neptune Apex ecosystem, the A3 Jr. provides robust monitoring capabilities for temperature, leak detection, and optional expandability through additional sensors and modules. The