MOS Magnetic Optical Sensor Fishmas IRON+ Supplement is part of

IRON+  Supplement is part of the complete range of complementary major

Removes yellowing

and anytime we can sneak in some MarinePure Biomedia into an All in one tank

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Each kit contains:

MOS Magnetic Optical Sensor Fishmas IRON+ Supplement is part ofThe Magnetic Optical Sensor replaces our optical sensor with magnet and offers an improved look, feel, and magnetic design that also lends itself to help prevent water incursion into the sensor. 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