What kind of fish tank needs a water cooler (or under what circumstances)

Crystal shrimp jar

Landscape straw cylinder

Reef basin

Hotel seafood gang

When do you use a water dispenser in a fish tank?

The daily water temperature is higher than the tolerance range of the feeding object, so it needs to be cooled down and restored to the water temperature where the feeding object can survive.

The daily water temperature is higher than the optimal living range of the feeding object, and the water temperature is maintained at the optimal water temperature of the feeding object without any money.