Neptune Apex Probe Module 2 Hydrometers & Refractometers It may be grape to

It may be grape to azure or any shade between

API Saltwater Master Test Kit Use and Reef Notes

or 80 gallons with a 30°F pull-down

As small juveniles they tend to be yellow

Excellent natural protein source free of harmful parasites and bacteria

Neptune Apex Probe Module 2 Hydrometers & Refractometers It may be grape toNeptune Apex Probe Module 2 The Neptune Apex Probe Module 2 adds salinity or conductivity monitoring, temperature compensation, six digital inputs, and AquaBus expansion to a compatible Apex aquarium controller system. PM2 Salinity and Conductivity Expansion The PM2 is designed for aquarists who want continuous conductivity or salinity monitoring through their Apex system. Salinity stability is especially important in reef aquariums, quarantine