This aquarium thermometer by JBL is a basic digital strip that can be attached to the outside of your aquarium glass. It has a green ‘safe’ zone so that you can quickly check if your tropical tank is within the ideal temperature range.
Fish depend on the right temperature in the aquarium because, being cold-blooded animals, they are not able to adjust their own body temperatures. The vital functions of cold-blooded animals decrease with falling temperatures. The right aquarium temperature is therefore very important to ensure the animals maintain their food intake and guarantee a smooth continuation of all metabolic processes.