I'm a newbie with a 20G tank I got for my two little girls, who love to watch the fish.
I have 3 Black Mollies which seem to have the most personality; 1 male and 2 females. I've had fry but they seem to have all been eaten. I have 5 Red Wag Platies (2 male, 3 female) which are pretty fun, too--they are bright so my 17-mos old can see them quickly. They've also had fry but are gone. My 2 Cories are alright--all they do is suck on everything in the tank.
So far these 3 fish have been pretty easy to take care of, other than the usual challenges of cycling the tank. A few fish have had ick, and there was 1 platy casualty, but now they are getting treated so they are happy and zooming around.
Have fun selecting your fish! Also, my advice...if your
LFS is something like PetSmart or Petco, I would do more research online for which fish are really compatible with what. It's not just temperament and behavior but water conditions that need looking into. The people I've had at those stores seem to have limited knowledge. Just my 2 cents...
Good luck!