Okay, thanks for the input 
If you want monster fish, you have to find a shop where they can order from Glaser in Germany... They have some awesome fish from all over the world, always super quality (they are always fully acclimatized, never "transhipped")
Here, shops are for begginers, if you specialize yourself, they can't offer you anything anymore...
NB: I think there are shops which sell monster fish but they are not a lot, maybe 2 or 3 in the whole country... In the other hand, Belgium, Germany and Switzerland can sell you great fish
If you want monster fish, you have to find a shop where they can order from Glaser in Germany... They have some awesome fish from all over the world, always super quality (they are always fully acclimatized, never "transhipped")
Here, shops are for begginers, if you specialize yourself, they can't offer you anything anymore...
NB: I think there are shops which sell monster fish but they are not a lot, maybe 2 or 3 in the whole country... In the other hand, Belgium, Germany and Switzerland can sell you great fish