Aquarium equipment for sale

Aquarium air pump
An air pump also called air compressor is one of those aquarium supplies that is either necessary or optional. If a hobbyist is using a filter that needs an aquarium air pump to work, then its necessary. If an external power filer or canister filter are being used, then an aquarium air pump is probably optional. An aquarium air pump can be used to operate decorations that require air to move, power in-tank corner filters, sponge filters or under gravel filters, and to power air stones.
A common aquarium air pump is powered by a magnetic arm that vibrates a small rubber diaphragm. The diaphragm then pushes air through a nozzle. An aquarium air pump is often rated for tank size. Some air pumps have one or more diaphragms and output nozzles depending on their capacity. The height of a tank can also be a factor in choosing an air pump. The taller the tank, the more air pressure will be needed to pump air to the lowest parts of the tank. Therefore, a more robust air pump will be needed. Many hobbyists often spend a little extra money to get an aquarium air pump with a capacity larger than their tank size so they have the option add additional decorations later on.
Submersible water pump & aquarium power head
A power head is a water pump that runs completely submerged in a tank. They typically attach to the "lift tubes" associated with UGF filters, pulling water through the lift tube. The stream of outgoing water can usually be oriented in (almost) any direction, and it is common to point them in such a way that water circulates throughout the tank and stirs up or "agitates" the surface a bit.
Protein skimmer
A protein skimmer is a device to get rid of the compounds such as food and waste from the water