Nano85

Hey guys,
I can't seem to make up my mind whether or not I need to upgrade my filtration. Maybe you all can help me out! Currently I have a Zoomed nano501 filtering a well planted 7.9 gal Fluval Ebi which houses 7 Phoenix Rasbora, 1 Parotocinclus, and a few Amano shrimp. I am also using an inline atomic co2 diffuser that is connected to the output hose of the filter. Do you all believe what I am currently using is plenty filter for my aquarium, as in enough filter capacity and turnover rate? Or should I be looking into upgrading to an Eheim 2211 or perhaps the 2213?
Thanks for checking my thread out!

NeonFlux

If the filter you are using right now is working well, I think you should just keep it going. However, if it does fail one day, you should get the Eheim 2211. Or get one right now as back-up. It's great.