I have always said with fishing that you should always only be able to catch 3 tiers of fish at once. So say the highest fish you can catch is Catfish, you should only be able to catch Salmon and Bass (I think this are the two tiers below catfish) + the Catfish for a total of 3 different tiers of fish. If you have a stricter selection of what you can catch you dont need to have 10+ inventory slots and you wouldn't also need to have fish go straight to vault. That way you can have better inventory management.

yeah this one works fine or maybe change the steps every 10 lvl instead of 15lvl to reduce one fish type, didn't made the math

I did not realize stacking the rares on top did that until now im in the situation where im having to manually stack…it would be nice if you could just turn off rare fish like the ez mode for cata so you only found magical

Even 4 tiers. = 12 +1 +1 rod + 1 spare rod =15

A reward for the tedium of leveling