Penguin bio wheel filters

[AngelThoughts]

I am purchasing a 26g bow front tank and even though the Penguin 125 is for up to 30 gallons would the Penguin 170 be better? Or too much? Is one filter enough or would an UGF be a good idea as well? Thanks for the help!
I plan to have 3 dwarf gouramis and some zebra danios and maybe some cory's as well.

[NJ Devils Fan]

I wouldn't go with anything less than the 170, never go by what the box says. You generally want a turnover rate of 8x or better. A turnover rate is how many times the water in the tank will go through the filter. It is calculated: gph of filter divided by the gallons of the tank.

HTH