Fishing leaderboard for biggest catches

There is a fishing leaderboard for the total haul for every biome and a fishing leaderboard for the different species. My suggestion is to add another fishing leaderboard for the biggest catches. To clarify, this leaderboard would not be exclusive to certain species, it would be in general.

Example:

1): 300 lb

2): 200 lb

3): 100 lb

...and so on.

I was thinking about this too, it would be really fun to look at how huge some fish can be. One problem I might see is that there is probably one species of fish that would end up taking over that leaderboard because that species is in general the biggest. I'd also wonder how rewards could work for a leaderboard like that since I assume you would be on that leaderboard for longer than any other. I wouldn't want it to reset every day or week, because I'd love to know how big the biggest fish ever was. Maybe just a one time reward for getting a fish in the top ten? 

Perhaps the leaderboard could list the heaviest for each type of fish all in one place to avoid that? Or the top 3 of each type?