Air Stone? Yes or No? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 12 Old 12-08-2010, 02:53 PM
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Originally Posted by Mattcot View Post
I like the look of them if they get placed correctly :)

can any one help with reducing the amount of air that comes out from an air stone with out damaging the air pumps diaphragm?

check to see if there is a button on the motor to turn the flow up or down. i didn't even realize mine was adjustable for about 6 months. Doh!

you can also bury it further into the gravel to reduce air or bring it closer to the gravel surface to increase.

Animal testing is a terrible idea; they get all nervous and give the wrong answers.
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post #12 of 12 Old 12-08-2010, 05:23 PM
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Originally Posted by Egrant View Post
So is a sponge filter different from a normal filter, never heard of one? IS it in the tank?

Thanks for all the advice guys!
A sponge is a very basic simple filter, and very effective especially in smaller tanks (up to 55g). It is basically a chunk of sponge material with two tubes (a smaller inside a larger) down the middle; you connect the small tube to an air pump, and the air goes up/down the tubes pulling water in through the sponge. The sponge filters out the particulate matter--just like sponge pads, floss, etc. in other filters--and bacteria colonize the sponge. So a sponge is mechanical and biological filtration all in one. Being small, in a small tank they are perfect. The water current is not great, which is usually preferable for various reasons.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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