Anyone can suggest me how to keep pakistan butterfly and the method of feeding them in our aquarium?

I have kept a Pakistan in my Fish Only tank...and I would caution you about getting one if you have or intend on having a reef tank that you keep stony corals as they eat stony corals in the wild!!! They will also nip at many sessile invertebrates that grow on live rock. You should have at least a 50 gallon aquarium.

The Pakistan requires a varied diet including marine fish, crustacean flesh, brine shrimp, and frozen meaty preparations. Once acclimated to the aquarium you may get by feeding only once a day, but they say 2 times a day is best for this fish! Hope that helps some!!!