Bought some fishes, at Aquatics International , 14 of 4" Red Tail Barb and 50 of 2" Tin Foil Barb, beats me I can't tell the difference. Total cost RM 70.00 that about USD 20.00 for the lot.
I recommend cheap everyday fish for the aquaponics setup, they produce just as much waste as the other more expensive variety.
The 2 packets
Close up shot of the 2" Barb
That's the 4" Barb
Put packets in the water, to equalize temperature for about 30 minute then release them all.