Aquatop External Dual Digital Aquarium Thermometer Cardinalfish and will not degrade water

and will not degrade water quality

The Hikari-Germ™ helps reduce and recondition waste thereby improving overall water quality

LifeRock is infused with spored bacteria to aid in biological performance

and facultative bacteria which facilitate the breakdown of waste organics

Aquatop External Dual Digital Aquarium Thermometer Cardinalfish and will not degrade waterAquatop's DTG 25 digital thermometer allows you to easily monitor your aquarium's water temperature & ambient room temperature with a large, highly visible dual LCD display. The sleek, compact design provides for non obstructive placement, making the DTG 25 the perfect choice for aquariums of all sizes. The DTG 25 is accurate to + 2 degrees Fahrenheit and must be mounted externally. Large LCD Display Showing Water & Ambient Room Temp Simultaneously