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These are designed for use with an air pump as the main source. You may be able to modify some 5/8" tubing to fit around the out side of the sponge filter clear tubing adapter.
Quarantine is a necessity in the saltwater aquarium hobby and having the necessary equipment can make or break the process. Foam Sponge Filters are one of the necessary items for a quarantine/hospital tank as it will trap detritus as well as help establish a bacterial colony to help with biological filtration.
You can keep the sponge in the display tank until ready for use in a quarantine tank. By keeping the sponge in an active tank will help seed the bacteria onto the sponge and help prevent a nitrogen cycle in the quarantine tank from taking place.
Works Great By Bull on 12/8/2015Bull would recommend this product to a friendThis works very well for a quarantine tank, works much better then a standard air stone. The Sponge filter works very good for a bio-filter as well, and no water is passing through the sponge so you dont need to clean/rinse it out every few days, like you would any normal sponge filter on a HOB filter.
Make sure you give the sponge a good squeeze when you put it in the water, if not it will float to the top of your tank.
Below is what i use for my Quarantine Tank
20 gallon tank
75w Eheim heater
20 gallon Sponge filter (with air pump connected)
30 gallon HOB filter
425 gph hydor koralia powerhead