Filter for mini tank

[bttay]

I have a round glass bowl that is 20 cm in diameter and 10 cm deep. Does anyone know of a suitable filter for it?

Thanks.

[tropic]

Dun thnk it need a filter for such a mini size.whats the content??[:]

[bluezing]

kinda agree.just do water change maybe every 4-5 days.

[hoonming]

Think you can use a type of traditional filter :

round in shape,use filter cotton as the medium, use only air pump to operate, the brand is "Guppy", selling at about $2 in most LFS.

BTW, what fish you intend to keep with such a small bowl?

[hoonming]

UPz.

[bttay]

I saw an undergravel filter at $2.50. But now I have changed my mind. I am going to grow some short plants and put a few tetras inside, without filter. I will have lighting of 6w PL and hope that the plants and fish will achieve some kinds of balance among themselves.