Toman is the way to go man....
get the Toman Bunga, or even better, some other rare species of toman. Ferocious, and hardy. Can sacrifice frogs, cicaks, fish, cockroach, baby mice, or anything that can fit its mouth.
Very happening fish.
No need for filter, no need for oxygen pump, no need frequent cleaning. Feed once a week also can. Best of all....Baby Toman Bunga can be bought for RM10 only. Or less. Can grow fat and huge, depending on tank size.
Good way to impress girls who come into your room....
You : "Dear, see my fish? Damn fierce wan" (throw a frog/cicak/whatever inside).
Girl: "Wahhhh, so ganas arrrr, so macho lar you, keep this kind of ferocious fish, lets fuck..."
Happening.....