Hygger Quartz Heater with Protective Sleeve - 100 Watt Water Changing It is also known as

It is also known as the pajama goby

Colour blend: clear material with purple-treated beads when softened and mixed

The Hygger Hydrometer is an easy-to-read aquarium salinity tester for checking specific gravity and salinity in marine and brackish aquariums

making it useful as a contrast plant in midground and background layouts

Its body may be various shades of olive green

Hygger Quartz Heater with Protective Sleeve - 100 Watt Water Changing It is also known asHygger Quartz Heater with Protective Sleeve 100 Watt Overview of the Hygger Quartz Heater with Protective Sleeve The Hygger Quartz Heater with Protective Sleeve 100 Watt is an adjustable aquarium heater built for small to mid size freshwater and saltwater aquariums. As part of Hygger's HG163 heater family, it uses an explosion proof quartz heating tube protected by a heat resistant ABS sleeve to help keep fish away from the direct heating surface.