Neptune Apex Optical Sensor with Magnetic Mount (OS-1 M) saltwater fish Unlike many other competing products

Unlike many other competing products

Spongebob - 2''

When using Alkaline Buffer™ & Acid Buffer™ together to target a specific pH

the Nero 5 is sure to keep your aquarium water clean and your corals happy and healthy

This package treats 720 gallons

Neptune Apex Optical Sensor with Magnetic Mount (OS-1 M) saltwater fish Unlike many other competing productsWhether for your ATO reservoir, to use as a sump high alert, or for your long term water storage such as a brute container, these optical sensors plugin into the FMM. In standalone use when used in your ATO reservoir (plugged into port 4), the FMM will stop your PMUP and sound an alarm when the sensor is above the water level. If you plug it into port 3, and mount it high in your sump, if your water level ever goes that high, an alarm will sound and