Reef Octopus USB Smart Fan - 4 Inch Tangs & Surgeonfish Extended-activity formula is more effective

Extended-activity formula is more effective than standard iodide solutions

Helps protect small fish

Small aquariums can change temperature quickly

Neptune LSM Lunar LED String - 4 LED

and other marine organisms in systems where iodine is tested and supplemented as needed

Reef Octopus USB Smart Fan - 4 Inch Tangs & Surgeonfish Extended-activity formula is more effectiveReef Octopus USB Smart Fan 4 Inch The Reef Octopus USB Smart Fan 4 Inch is a temperature responsive aquarium ventilation fan for canopies, enclosed stands and equipment cabinets where heat buildup needs to be reduced. Smart Cooling Fan for Aquarium Cabinets and Canopies This 4 inch smart fan automatically increases or decreases fan speed based on the ambient temperature around the thermostat. It is useful for moving warm air out of enclosed aquarium