Different types of accessory pumps may be used for additional circulation or variation of the flow within the aquarium. These include external dedicated circulatory pumps and powerheads. The powerheads may be hooked up with wave-maker switching devices, "pulse timer1' switching devices, or with simple timers.
External dedicated circulatory pumps have the advantage of not being an obstruction within the aquarium, and not contributing as much heat to the water as submersible powerheads. When using an external pump, the location of the intake is important. We have seen many aquariums equipped with recirculating pumps with the intake plumbed through the wall of the aquarium (either a side or the bottom), and outfitted with a strainer to prevent fish from being slurped into the motor. This technique works fine for fish-only aquariums, but is a disaster in the reef tank. Don't make this mistake! Wandering clownfish anemones, loose mushroom anemones, algae, sea cucumbers and other creatures end up against the strainer and often, through the pump. They become reef puree. The design of choice with this arrangement is simply to put the intake in the overflow. This arrangement can also be used for feeding the protein skimmer from the overflow.
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The word aquarium originates from the ancient Latin language, aqua meaning water and the suffix rium meaning place or building. Aquariums are beautiful and look good anywhere! Home aquariums are becoming more and more popular, it is a hobby that many people are flocking too and fish shops are on the rise. Fish are generally easy to keep although do they need quite a bit of attention. Puppies and kittens were the typical pet but now fish are becoming more and more frequent in house holds. In recent years fish shops have noticed a great increase in the rise of people wanting to purchase aquariums and fish, the boom has been great for local shops as the fish industry hasnt been such a great industry before now.