You use this to combine several C-tier fish into one B-tier fish, or split a B-tier fish into multiple C-tier ones. Or same with other adjacent tiers, though there’s some additional inefficiency penalties with higher tiers.
It’s pretty useful for compact setups where you need a specific tier of fish, but it’s much more efficient to collect all types fish and implement some filtering logic to route them by tier to where they’re needed.
You use this to combine several C-tier fish into one B-tier fish, or split a B-tier fish into multiple C-tier ones. Or same with other adjacent tiers, though there’s some additional inefficiency penalties with higher tiers.
It’s pretty useful for compact setups where you need a specific tier of fish, but it’s much more efficient to collect all types fish and implement some filtering logic to route them by tier to where they’re needed.