Fish Tank Chillers

Tanks easily overheat, and your fishes can suffer or even die if their water gets too warm. Aquarium chillers come to the rescue in warm summer months, and offset heat from equipment like pumps and lights. Many fish and organisms come from cold waters, and you'll need an aquarium chiller to replicate these conditions. We carry drop-in chillers and flow-through chillers. Make sure you have a reliable aquarium thermometer to avoid fluctuations.

Too high of a water temperature can also cause death. Poor water conditions
such as fluctuating temperatures can cause another problem: As water temperature
rises, the water loses oxygen. After a short period of time in a hot tank, your fish start gasping at the surface and can eventually die of asphyxiation. Extreme temperatures can damage their scales, fins, and other physical aspects as well. One piece of equipment designed to keep water temperature down is a chiller, but this can be very expensive.

The most important thing to remember is that your room should not change the temperature of your aquarium more than a few degrees from the norm (normal temperature depends on our species of fish and is covered later in this book).

So now you know not to put your aquarium in an area that is too cold or too hot. You may be thinking, “But my house is well insulated.” And you’re probably right, but two things in even the best-insulated homes can cause temperature fluctuations: Windows and doors.