here's what i think. if you combine any of the two on this list, you'll get another fish on this list.

Silky Shark
Tiger Catfish
Hornet Arrowfish
Fanned Snout
Pink Fatfish
Snubbed Snooper
Wasp Goldshark
Canary Fire-arrow
Orange Fruitfish
Oriental Flashfish
Golden Goldbulb
Crimson Comet
Spined Stickfish
Stubby Grouper
Speckled Leaffish
Razorback Carp
Greenfin Beta
Great-Sail Pigmy
Flagged Bananafish
Finless Quicksilver
Twin-fin Spotanus