Advise me benefits and disadvantages (if any) of keeping a juvenile Flowerhorn fish in a 200 litre tank.?

I am talking about maintainance, temperature, temperment, food, sub-strata, filtre everything, incl the fish.

Professional replies would be appreciated. This is my first venture with Flowerhorn, though I have been keeping fish for 7 years now incl Goldfish, Oscar, Discus, Arwona etc.