Getting rid of Clown Loach, got any ideas for new fish?

[Plec123]

Ok, I'm gonna get rid of my CL, which leaves me with this once he's gone:

38gal tank- 36"x12"footprint & 20"tall
Filter- Aquaclear110, filters 500gph
Plants- 15 Cryptocoryne wendtii
1 Anubias nana
1 small java fern
Fish- 4 red & blue columbian tetras
1 male swordtail, should be gone soon as well, since he's 4 years old
1 clown plec (male)
1 common BN plec (male)
1 whiptail cat (Rineloricaria parva)
1 angelfish (wild color, no fin extensions)

So, Once im rid of the CL that i never wanted in the first place, im gonna have room to get a medium sized fish, or a couple small ones, that don't have much bioload.

I'm looking for something that you cant just go out and get at like petsmart or something, like, an abramite, or annostomus, etc. Even if someone suggests cories, i can get some hard to find kinds, but i leaning more towards the single medium sized fish than the smaller ones.

So, ill just sit back now and watch the suggestions come in!

 

[Citrinellus]

school of cardinal tetras?

 

[Plec123]

Could work. I may go with those if i cant find one of the more medium sized fish. im thinking that i want something that is a bit harder to get, like, annostomus, abramite, or charax sp.

 

[Columbian Shark Catfish]

I still love your filteration
AC 110 for a 38 gallon tank

 

[Plec123]

yeah i love it too! that filter is great.

any ideas on fish? would any of the fish i mentioned in the second post, or would any cichlids that arent dwarfs work?