Fish mutation
Diamond Mutation
Diamond is a fish mutation in Roblox +1 Drain Water Per Click that multiplies a fish's sell value and aquarium earnings by ×5. Spawns naturally on fish in all areas
Data verified:
Multiplier
×5
See what Diamond does to any fish: enter a base value in the Mutation Calculator and compare all four mutations at once.
Open Mutation CalculatorAll mutations compared
How much is a Diamond fish worth?
A Diamond mutation multiplies the fish's base value ×5 — both its sell price and its aquarium earnings. Example: a 1,000-Value fish becomes 5000 with Diamond.
How do I get Diamond fish?
Spawns naturally on fish in all areas Mutations only apply at spawn — you can't add one to a fish you already caught.
Can Diamond stack with other mutations?
No. Every source agrees a fish carries at most one mutation.
Sources
- allthings.how — +1 Drain Water Per Click mutationsthird-partyhttps://allthings.how/1-drain-water-per-click-mutations/(accessed August 28, 2026)Mutation multipliers, weather windows (+10% spawn, ~4 minutes).
- TechWiser — Mutations in +1 Drain Water Per Clickthird-partyhttps://techwiser.com/mutations-1-drain-water-per-click/(accessed August 28, 2026)Gold ×2, Diamond ×5, Venom ×10, Hole ×20 (player-measured).
- Nerd's Chalk — best fish mutations in +1 Drain Water Per Clickthird-partyhttps://nerdschalk.com/best-fish-mutations-drain-water-per-click/(accessed August 28, 2026)Confirms mutation multipliers and weather effects; caveats values are player measurements.
Values on this page are only as reliable as their sources. See our methodology for how data is collected and verified.