[header] How to take care of freshwater fish [title] Research different fish species. [step] Look on the internet or at the library for information about your fish options. Take notes about the ones that seem particularly interesting to you. 
Do you like the bright color of goldfish or perhaps the unique shape of puffers? You can also ask the store clerk for assistance, but it is always best to go in with some prior knowledge. [substeps] Joining a fish forum online is another good option.