What players can trust before building a fish checklist
The safest current fish list starts with the official category surface from the live Roblox experience: fish, shark, whale, and monster fish. That is enough to answer the exact query without pretending a full creator-owned species table is public.
If you are searching for an all fish list, treat this route as a category-first reference. The public web can support safe guidance about catch families, aquarium priority, mutations, and index progress, but it still cannot support a fully settled species-by-species table.
The current official patch surface still points players toward the same core loop: catch fish, place them in the aquarium for cash, upgrade rods and aquarium slots, and use mutations or index progress to improve later sessions. That makes a fish-list support page useful even before every species name is public.