Amazon Boitope For A 23gal Tank

[KingofthePisces]

so far ive got blue rams, pristella tetras and bristlenose plecostomus
im looking for 1 - 3 more different types of fish to add to the biotope to finish it off
i was thinking another catfish or a small cyprinid or characin
mabey even a labyrinth fish of some kind
i cant find any solid info on what fish i could take
help appreciated

 

[Aphotic Phoenix]

How many of each fish do you currently have?

 

[KingofthePisces]

How many of each fish do you currently have?

bristlenose pleco: 2
pristella tetra: 4
blue rams: 2

these are what i plan to keep for my amazon biotope as im moving soon and i cant keep all the fish when i move
so im going to build the population slowly again
i was thinking of adding more pristellas
2 or 3 more
wat else would i be able to add to fill up the top layer?
thanks
KOTP