Neptune Apex Probe Module 1 Groupers then slowly discharge the contents

then slowly discharge the contents of the device 2 - 4" upstream of the target organism(s)

Their aquarium should provide plenty of secure rockwork- larger species may topple unstable decor or dig under the sand

Its mouth is set low on its flat face

Helps maintain alkalinity for coral growth and reef stability

Neptune Apex Probe Module 1 Groupers then slowly discharge the contentsNeptune Apex Probe Module 1 The Neptune Apex Probe Module 1 expands a compatible Apex system with an additional pH or ORP probe port, an extra temperature port, six digital inputs, AquaBus expansion, and full Apex data logging. PM1 Expansion for pH or ORP Monitoring The PM1 is a practical Apex expansion module for aquariums that need another pH or ORP monitoring point. It is commonly used for calcium reactors, kalkwasser monitoring, secondary pH