2.5Nano: filter question - The Planted Tank Forum
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post #1 of 5 (permalink) Old 01-09-2015, 04:13 PM Thread Starter
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2.5Nano: filter question


Obviously I have a filter question, heh. I just bought a lil tank to keep my betta in for while untill I can afford a larger tank.

What would take up less space, a mini sponge filter or the tubes for a sun sun canister?

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post #2 of 5 (permalink) Old 01-09-2015, 04:23 PM
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The canister filter would be the better option, it would add to the overall tank volume. Probably best to not keep a betta in a 2.5g., maybe upgrade to a 5 or 10 gallon. (Petco in my area has $1/gallon sale currently)
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post #3 of 5 (permalink) Old 01-10-2015, 06:20 AM
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For a betta in that size tank, I actually like the tetra 3i filter best. It doesn't create enough current to push them around.

And while a sunsun mini canister might add to overall volume, the flow will likely be too much for a betta in this size tank. If the choice is only between that and a sponge, I'd go with the sponge. I've never had a problem with any of my bettas and a sponge filter.

You'll either want one of those tiny air pumps from the 1 gallon petco kits, or the smallest pump you can find with a flow valve turned way down.
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post #4 of 5 (permalink) Old 01-10-2015, 07:25 AM
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If you're looking to upgrade, keep an eye out for the Petco dollar-per-gallon sale. You could get a 10 or 15 for very little.
I'd suggest a mini-ish sponge filter. Put something around it and make the sponge into sort of a hiding spot, maybe grow moss and java fern on it or something.

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My current project, a 65 gallon aquarium stocked with vernal pool fauna.
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post #5 of 5 (permalink) Old 01-12-2015, 05:09 AM
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I personally like the Azoo Mignon 60... It's HOB so it does not take up too much space, and I like that it is very much like Aquaclear. You can customize your media. Also, with the adjustable flow rate you can turn it down to a level suitable for your betta. I use it in my 2.6 gallon betta tank.

Best part is that if you can find them I stock on Dr Foster and Smith they are only $6... On their site they call them Azoo Palm Filters. Anywhere else your looking at $12-$18. Still, good deal though.

Goodluck, I hope this helped.

- Matt M.
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