You have any idea what family the panda dwarf cichlid is in???

Well, obviously, since it is a Cichlid, it comes from the family Cichlidae. I do not believe that it came from a lake, but rather the Amazon in Peru. Its name is Apistogramma nijsseni, and it is otherwise known as Nijssen's Dwarf Cichlid. Here is an article: http://aquadex.info/fish/Apistogramma_nijsseni.cfm

Searching with the scientific name may yield more info than searching with the name Panda Dwarf Cichlid. Good luck.

By the by, Tanganyika would be the name for that East African lake, and not all Cichlids are lacustrine (lake-dwelling). Many live in rivers and are said to be riverine.

You would need to do a lot of work to properly care for riverine Cichlids, especially "Apistos", as their water quality needs are much more precise than those of many other fish...that is, they can only tolerate a small range for pH, hardness, et cetera. (Oft-bred riverine Cichlids which are far-removed from the wild-type, such as your garden-variety Oscar and Krib, have more tolerance for variation in pH, DH, KH, and GH.)

Apistogramma nijsseni or apisto. panduro. Pretty aggressive for an apisto, struggle above pH 7, mine only bred successfully below pH 6. So pretty well the opposite to African Lakes fish