Don't just add AIR, add a sponge filter. You get the best of both. I have a sponge filter in all of my tanks running off of a battery backed up air pump. So in case the power goes out, you are still good to go on filtration and on oxygen. If you are considering a sponge filter, IMO Poret is much better over the competition.
Thanks everyone for all you replies.I have bookmarked the website that sells the Poret Filters let me ask where do you get the battery backup pump? I'm currently running a Fluval Q2 with standard airstones. I had thought og trying to get one of those APC battery backups like they use for computers I know it goes by size but how long will this battery operated airpump go without power?