Schooling by size

[Fatlungy]

Our pond at our restaurant. The fish all hangout by size.

 

[kendragon]

How did you train them to do that? haha
That is awesome.

 

[FishPondSealant]

Wow! It's amazing and wonderful to see such a by chance classification of all fishes in your beautiful pond. Am I right? all it is by chance? or you have any secret trick to do this classification?