My favs are pims. Currently have 2 Sorubim limas, 1 Phractocephalus hemioliopterus, 1 Phractocephalus hemioliopterus x Pseudoplatystoma fasciatum, 1 Phractocephalus hemioliopterus x Leiarius longibarbis, 3 Pseudoplatystoma fasciatum, and 1 Zungaro zungaro. The largest is the
RTC x TSN hybrid, he's about 3' long. The rest are all still under 20" for the time being, but not for long.