NEPTUNE SYSTEMS APEX FMM OPTICAL LEVEL SENSOR V2 (OS-1) Hanna Instruments Excess calcium may enhance the

Excess calcium may enhance the loss of carbonate alkalinity

And unlike many wimpy pumps out there

If you notice this then we suggest slowly reducing the amount of carbon source added

RUBY red wall to block light and prevent unwanted algae growth in skimmer section

Let MAXOUT PRO clear your water and help balance your parameters

NEPTUNE SYSTEMS APEX FMM OPTICAL LEVEL SENSOR V2 (OS-1) Hanna Instruments Excess calcium may enhance theOptical Level Sensor (OS 1) This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto top off), as a high level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted into custom brackets or through a hole in a vessel. Included are a fastening nut and