I have a 24 gallon Aquapod as well adn looked into a skimmer for a while. Everyone has a different opionion on them. I'm not running with one now, just planning on weekly water changes. If you search nano-reefs forums, there are a ton of mods for aquapods and setting up skimmers. I would suggest doing the credit card or cassette tap mod.
I just took out the bio balls and chemical bag and put about 2 lbs of live rock ruble in the chamber instead. I am still using one of the sponges (mine came with 2) and I rswitch it about twice a week with the unused one.
I don't have any fish or coral yet....I just finished my cycle, but I haven't seen any problems. Some people have put over a $1000 into moding their aquapod....I personally don't see a point in buying an all in one to do that!
Just my 2 cents.
Good luck!!!