Hi Kishun and welcome to Simply Discus.
I don't think you'll find anyone here who thinks more space is a bad thing. It gives them lots of room to grow. Smaller fish like yours may need less space, but we usually recommend 10 gallons/40 liters per adult fish. Probably the main drawback to more space is that it means a larger volume to keep clean and to change when you do water changes. Where are you located, if you don't mind me asking? We also enjoy seeing pictures if you can post some of your tank.