Tips for level 597 Candy Crush Saga
Level 597 has a conveyor belt running through the middle of the right side of the board. The candies move along from right to left and when they exit the right half of the board they re appear top left of the left half of the board.
While the left side is full of candies they move along the conveyor from left to right, but as the candies are destroyed they fall off the conveyor to the bottom of the board, one at a time.
I think the best way to deal with level 597 is to get the most powerful combos you can in the right side, maybe a colour bomb.stripe or wrap, while there are still candies in the left half, to destroy as much jelly as you can quickly.
This will also release the fish, which will clear quite a bit of jelly too.
Then finish off what's left with stripe/wrap combos and any remaining fish.
Once the candies are gone from the left side a colour bomb won't do much good unless combined with a stripe.