The package says "fully submersible", but the heater itself has a water level line...
Am I correct in understanding that the Visitherm Stealth Heater can be placed horizontally, completely submerged, along the level of my gravel? Or is it just like any other heater that can only dip into the top of the water...?
Am I correct in understanding that the Visitherm Stealth Heater can be placed horizontally, completely submerged, along the level of my gravel? Or is it just like any other heater that can only dip into the top of the water...?
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