D-D OCEAN breeze cooling fan (4 Fans)

Ocean Breeze Cooling Fans (4 fans)

High temperatures in an aquarium can cause stress and disease. Not everyone has the budget or space for a refrigerant chiller and so a simple solution is to chill your tank by evaporative cooling.
This low-cost solution simply involves blowing a stream of air over the surface of your tank or sump to increase evaporation, which creates evaporative cooling.