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post #1 of 6 Old 02-04-2007, 06:51 PM Thread Starter
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sponge filters

Okay. I decided to organize a 10 gal freshwater breeding tank. I have everything I need, except I can't figure out the sponge filter.

I went on line(can't remember where and I've tried find it again) and I read that I need an air pump and air stone to go with the filter. I got the filter home this evening and the only directions on the box are the obvious how to snap the unit together. I know what to with the air tubing but whatever do you do with the air stone??
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post #2 of 6 Old 02-04-2007, 06:58 PM
Bristle nose's Avatar
If you have attached the air pump to the filter then you dont need the air stone. The air stone is so that if you dont have the air pump attached to the filter you have it blowing into the tank and finer bubble come out.

I'm a Pleco addict!
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post #3 of 6 Old 02-04-2007, 07:07 PM Thread Starter
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sponge filter

Thanks, I thought it was me have a brain malfunction or something.. I will be returning the air stones tomorrow..
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post #4 of 6 Old 02-05-2007, 01:51 AM
FDStation152's Avatar
actually in my sponge filters you cut a small length of tubing to attach the airstone on the inside of the filter. What brand of sponge filter are you using? I'm suprised it didn't come with directions on how to attach the airstone.
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post #5 of 6 Old 02-05-2007, 06:53 AM Thread Starter
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sponge filter

The sponge filter is a Hydro-Sponge I manufactured by Aquarium Technology, Inc. I was surprised at the lack instructions myself. If I hadn't read something on it before I ventured into town I wouldn't have know at the time I needed an air pump(mentions absolutely nothing about one). Out of our 3 lfs only one actually had one and the others didn't know what they were.
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post #6 of 6 Old 02-05-2007, 07:02 AM Thread Starter
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sponge filter

Aha! I think I know what you are talking about. I just took the filter apart and on the opposite side of where you hook up the air line there is another protruding hole just like the other. What size stone would you use? The ones I bought are one inch long and 1/2 an inch wide and will fit into the space easily.

I have only used air stones one other time and that was for an initial 2 1/2 half gal tank for a betta and I had replaced that with a Penquin on the back of the tank filter because I didn't like the underground filter for such a small tank. I really don't know what is an appropriate size.
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