Frostblue Sunfish
1★ core: Copperband Butterflyfish ×1
Plus three copies each of Moonhorn Tang, Neon Cleaner Wrasse, Mossback Otocinclus.

Plan breeding odds, run the three live First Season recipes, and follow update-specific fish, synthesis, achievements, and troubleshooting answers.
Frostblue Sunfish · Limeback Sea Turtle · Matsuri Octopus
Update 1.3.0 also adds Bluebolt Tuna, Sunburst Ranchu, Pass Through, and Hide Breeding Attempts.
Reviewed Aug 29, 2026. Sample size was not recorded; this is not an official formula.
Updated September 5, 2026
1★ core: Copperband Butterflyfish ×1
Plus three copies each of Moonhorn Tang, Neon Cleaner Wrasse, Mossback Otocinclus.
1★ core: Blushing Firefish ×1
Plus three copies each of Banggai Starfin, Golden Butterflyfish, Neon Streak Tetra.
1★ core: Golden Moorish Idol ×1
Plus three copies each of Cream Puff Puffer, Skywing Flying Fish, Royal Goldtail.
Estimate community-tested rarity outcomes for PC FISH parent pairings before you commit a breeding slot.
Compare the community rarity table by parent pairing, with its source status, missing sample size, and verification date shown beside the numbers.
Track PC FISH parent pairings, rarity outcomes, and unknown breeding combinations without guessing unverified species results.
A launch database structure for PC FISH species, rarity, source, grade, and market notes.
Use the Quick Merge Guide to separate Normal Merge from Season Merge before spending fish on PC FISH synthesis.
A practical value guide for fish, decorations, limited items, and trade decisions.
Season 1 is live now and ends October 4, 2026 at 23:59 UTC. Check Seasonal Fish merge ingredients and star requirements for Frostblue Sunfish, Limeback Sea Turtle, and Matsuri Octopus.
Understand Basic, Common, Uncommon, Rare, Legendary, and Mythic rarity tiers in PC FISH.
A focused tracker for Mythic routes, odds windows, and trade notes.
A long-term index of every PC FISH Seasonal Fish, its season, availability state, and route after the event ends.
Use Steam Market and community trading signals without overpaying for hype.
See all 30 Steam achievements and exact unlock conditions, plus the current player-reported Variant Mastery issue.
Track grade, star, and quality signals that affect keeping, trading, and merging decisions.
A lightweight hub for Season 1 trade rules, market checks, and listing discipline.
Use safe checks for fish not eating, hidden starter items, decoration placement, invisible windows, antivirus warnings, Cloud/network errors, and tiny 4K UI.
PC FISH creates repeated decisions: whether to breed now, hold a high-rarity fish, synthesize a stack, sell into the market, or wait for a season route to settle. A normal article-first wiki can explain the game, but it is slow when a player needs a quick outcome check. This site keeps the calculator, database fields, and market notes close to the top so the answer is reachable before the player leaves the game.
Exact PC FISH numbers should stay marked by source and date. The breeding table starts with community-tested rarity outcomes because those are the most useful early decisions. Species lists, recipe rows, market prices, and synthesis recommendations should grow only when there is enough evidence to avoid turning guesses into permanent-looking facts.
New players asking how to play should start with the breeding calculator and rarity page. Collection-focused players should use the fish database, seasonal fish tracker, and achievements checklist for progression and unlock planning. Market-focused players should compare values, trade notes, and update-sensitive season availability before selling rare stock that may be more useful as a breeder or recipe ingredient.