Marineland Precision Heater Double Red agasizi They look quite similar to

They look quite similar to male Electric Blue Johanni's

Do not redose without testing water

the FishGuard installs effortlessly

and many annelid worms such as feather dusters and Christmas tree worms

Marineland Precision Heater Double Red agasizi They look quite similar toGet precise control of your aquarium temperature with the Precision Submersible Heater. This Heater combines an adjustable temperature dial, a high visibility temperature display and an advanced heating element to keep your aquarium water at the optimal temperature for your freshwater or saltwater fish. The Precision heater also includes a thermal switch which will turn off once it rises above an internal pre set temperature, and turns back on once it