I found an ad in my country selling cheap feeders.. Real cheap because that's an exporter..
Here a list of what they sell(the ones in red are in Bahasa Melayu since I dont know what are they in english..)
-Red Tilapia
-Red finned Cigar shark
-Mystus spp.
-Javanese Carp
-Siamese Climbing Perch
-Snakehead
-ID Shark
-Big Head Carp

-Silver Carp
-Rohu
-Grass Carp
-
Lekoh
-Marble Goby
-Mahseer
-
Keli
-
Tingkalan
-
Krai
-Apparently GOLD ID shark
-Lampam
Kerai-- Lampam is a kind of barb... but no -idea what is kerai
-
Temoleh
-Tenggalan
So which one is the healthiest feeder fish?