The short answer is no, at least not in the sense that you can keep a mandarin by buying a bag of live pods from the LFS each week since most LFS don't sell live pods like they sell live brine shrimp. If you are interested in establishing your own pod population, you may not need to do too much. You probably already have some, and there are ways you can help increase your amount of pods like having a refugium and covering the intake of your power heads with a sponge cover (most PH makers sell this type of accessory). If you want more info, do a search on this board for pods, there have been plenty of threads about pods and mandarins.