Fishermerm's Huts are naturally spawning structures in Marsh biomes in the Shipwrecked DLC. They spawn and shelter Fishermerms, and up to 2 Fishermerms can inhabit 1 hut. Fishermerms are active during dusk and night. If a Fishermerm living in a hut dies, a new one will spawn after 4 days from the hut. If hammered, the hut will drop 1 bundle of Boards, 1 pile Rocks, and 1 Tropical Fish.
- Merms do not live in or spawn from Fishermerm's Huts. Fishermerms are passive and helpful as they will fish from the Tidal Pools, and leave their catch on the ground. Therefore, it is beneficial to keep Fishermerm's Huts around instead of destroying them, if they are close to Tidal Pools. However, hostile creatures will attack Fishermerms, so the player should either neutralize threats around the hut. This approach can provide the player with an endless supply of Tropical Fish with minimal effort.