Quacker, others will disagree with me, but this is my recommendation:
1 one red fin black shark (couldn't do without one.)
5 or 6 small cory catfish (as a recent convert to this wonderful species!)
Two banjo catfish.
A shoal of long-fin danios.
A trio of endlers (for preference) or nice guppies – either one will give you a host of colourful bred-like-rabbits-fish that you will need to get thinned out all too soon..!
I would avoid neon and cardinal tetras for a while, as they seem to drop dead at the drop of a hat, and sword-tails, because they will live forever and take over the
whole tank!
But add some Angle fish – no community tank is complete without some small Angle fish... (By the time they are too big for your tank, you'll have a much bigger tank to move them into,
won't you..?)
“Yeah, I know I promised that I wouldn't want another fish tank, but you don't want me to have to flush poor Brian and Freda down the toilet, do you..?”
“Well, no...”
“So then, my little cherry pudding, we really do need that new 4 foot tank for them, don't we..?”
“Well, I don't want them killed, so I suppose, if you say so...”
“You are
soooo compassionate, it's no wonder I love you so much..!” Kiss, kiss, kiss, kiss. kiss...
It's going to cost a fair bit more than a few wet kisses to get that extra six-foot tank next year, but I reckon that a smooth talker like you are in there with a reasonable chance..!