Before you see the numbers remember that Level 30 Fishing is pretty hard to get (takes a very long time - months).
- The level 30 fish gives a 1 hour VIP card,
- But DrOn actually prefers 40 fashion shards daily, which I do agree with him; we can actually calculate this; 30 days VIP is 799 balens, which is equal to 30 x 24 = 720 VIP 1 hour cards, which would require 36 days to collect. Instead, with a ton of patience and accuracy, you can collect up to 120 Fashion Cores, which of course is worth a lot more balens
- Finally, the wild fish, at level 30 Fishing gives 10 Bound Balens, which is something to consider as well if you want to buy something with BB - this can net you up to 200 BB per day, which is 6000 additional BB per month.
So awesome numbers, but like i said, Level 30 Fishing is not something a lot of people have.