Fish Nests: Hatch Morphs Nobody Can Buy

Gill has been busy. The Aquarium just grew a new corner, and it changes what a spare Guppy is worth.

Fish Nests

Put two fish of the same family in a Fish Nest — two Guppies, two Koi, two Bettas — keep the tank fed and clean, and come back in 8 hours. If the eggs take, out swims a morph: a brand-new colour variety that never appears at the Aquarium Shop and never bites at the Fishing Pond. Morphs only hatch here.

There are 24 of them to find across 12 families: 11 rare morphs from pairs of commons, 9 epic morphs from pairs of rares, and 4 prismatic morphs that need something special — a legendary. A legendary is a wildcard: it pairs with any fish and lifts the result one step, so a Prism Arowana beside your Galaxy Betta is the only road to the Prismatic Betta.

Not every nest hatches. Rare morphs land about a third of the time, and the odds shorten from there — but every fourth nest in a row is guaranteed, and the Aquarium page tells you when your next one is a sure thing. Both parents rest for a week afterwards. Hatched morphs are ordinary bagged fish once you scoop them out: sell them, trade them, or keep the whole set.

Fish Nests cost 2,000 MPC at the Aquarium Shop, one per hatch.

Gill's Counter

Doubles piling up? Gill now trades. On the Aquarium page, hand him 12 bagged commons or 3 bagged rares for a Fish Nest, or 5 commons from one family for that family's rare. Listed and trade-locked fish stay yours, and he politely declines hatched morphs — those are worth keeping.

Two smaller things

Keepers at the Fishing Pond are now capped at four a day, and the pond leans toward species you have not discovered yet — so a keeper is more likely to be a new face than a fifth Pond Koi. And fish now grow: a new arrival starts small and fills out over its first two weeks in the tank.

Full details are on the Aquarium wiki page. Now go pair something.