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BE A FISH BAIT Fish Tier List

Use this page when you need a direct fish-ranking answer for aquarium decisions without pretending the public web already has verified per-species value tables.

Checked July 13, 2026Exact intent coveredPer-species values still unverified
Quick answer

Rank fish by aquarium impact, not by copied hype

The safest fish tier list still works at the family and session-value level: monster fish and stronger mutated late-session catches deserve the top slots, while filler fish should rotate out once your aquarium and rod upgrades improve.

If you only need the short answer, keep the hardest-to-replace late-session catches and demote early filler fish first. That matches the official catch-family surface and the aquarium economy loop better than forcing fake numerical rankings.

Treat mutations, fish level, and index progress as rank modifiers. A merely rarer catch is not automatically better if it loses more aquarium value than a leveled or mutated keeper already in your slots.

Tier table

Safe category ranking for current fish-family intent

This route satisfies the exact query with category-level rankings while the public species table remains incomplete.

S

Monster fish and top-end mutated keepers

Best aquarium-first priority when the catch is hard to replace and mutation value is real in your save.

A

Whales and strong late-session sharks

High-value keepers when they hold slots better than standard fish and survive long enough to matter.

B

Mid-game sharks and strong standard fish

Good progression earners, but replace them when late-session families or stronger mutations appear.

C

Early filler fish

Useful for starting cash, index registration, and temporary aquarium slots before better catches arrive.

Adjustment rules

What should move a catch up or down

Use these rules whenever two catches are competing for the same aquarium slot.

Mutation bump

Mutated catches can outrank a base catch from a stronger family when the mutation clearly improves aquarium value.

Level and replacement cost

Keep leveled or hard-to-replace earners over flashy but disposable catches when the grind to replace them is slower than the gain.

Patch context

Re-check fish priorities after Delulu-era patch notes, new island reveals, or rebirth loops that change what zones feed your aquarium best.

Related pages

Use exact routes instead of guessing from broad hubs

These pages answer the next questions players usually ask after opening a fish tier list.