Upgrade Spawnquatic
Upgrade Spawnquatic adds a set of Coralstone blocks and extra aquatic creature behavior for NeoForge, linking the Spawn and Upgrade Aquatic mods on 1.21.1.
What it does
Upgrade Spawnquatic adds constructive compatibility between Upgrade Aquatic and Spawn. Several new Coralstone blocks host deep warm sea corals, and they behave like the Coralstone blocks from Upgrade Aquatic. Coralstone can be placed near corals that Spawn introduces, and the blocks take their textures and code from the mods they bridge. The Blueprint library supplies code the mod relies on. Spawn's palettes supply the block palettes for the new blocks.
Several aquatic creatures gain new behavior. Blue-footed Boobies pick up raw fish items, including the raw fish added by Upgrade Aquatic, and raw Bluefish, Herring and Tuna are tagged as raw fish. Bluefish attack Nautilus, Perch and Pike during a frenzy. Pigment Shifters are crafted with Luminous Prismarine, Sea Cows are bred with Pickerelweed, and Seals and Tuna eat raw Perch and Pike. A temporary measure removes some Spawn updates. A datapack can integrate further features of both mods. Upgrade Spawnquatic requires Blueprint, Spawn and Upgrade Aquatic. Installation covers the server and each player's game.
Key features
Coralstone blocks
New Coralstone blocks host deep warm sea corals and work like the Coralstone blocks of Upgrade Aquatic.
Creature behavior
Blue-footed Boobies pick up raw fish, Seals and Tuna eat raw Perch and Pike, and Bluefish attack during a frenzy.
Crafting and breeding
Pigment Shifters are crafted with Luminous Prismarine, and Sea Cows breed with Pickerelweed.
Datapack integration
A datapack can add more features from Spawn and Upgrade Aquatic.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 3
Use cases
Who it’s for: Players who combine Spawn and Upgrade Aquatic in one NeoForge world on 1.21.1 will get the most from the bridge, and server owners running both mods can install it on the server and clients.
Questions
Which mods does Upgrade Spawnquatic require?
Does Upgrade Spawnquatic have to be installed on both sides?
In the catalog
Upgrade Spawnquatic is one of 12,078 Decoration mods on ModsFinder, and one of 5,201 Decoration mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
This mod adds a few new Coralstone blocks (originally from Upgrade Aquatic) that are hosting deep warm sea corals (from Spawn). These new Coralstone blocks function just like the ones from Upgrade Aquatic: just place Coralstone near the corals from Spawn and let it rip. The mod also includes a datapack to integrate…
Official listing
- Modrinth page
- modrinth.com/mod/upgrade-spawnquatic
- Owner
- cosmicgelatin1
- Published
- 2026-08-21
- Updated on Modrinth
- 2026-08-21
- Facts verified
- 2026-10-15
