i have no experiance with this fish,however i looked up a little bit
of information for you,and i hope it helps.
Peacock eel: Macrognathus siamensis.
6-12 inches long. PH 7.0 DH 10
temo. 73-82 f 23-28c
will eat small fish,keep in a heavily planted tank,they will like living
in a substrate of sand or fine gravel,they will hide in the day time
and come out to feed in the evening,they will like pipes,roots
caves to live in.they will eat Live brine shrimp,blood worms,
mosquito larvae,and apparently when they are adults they will eat
nice looking eel,hope you get what you want.