Darwin Fish

DarwinFish

DarwinFish is a mod that overhauls the underwater ecosystem in Minecraft. It replaces static fish behavior with a dynamic lifecycle, introducing breeding mechanics, genetics, a food chain, and new culinary options.

🐟 Ecosystem & Breeding

Fish now have a complete lifecycle, from eggs to fry to adults. * Overpopulation Control: Feed two adult fish Seagrass or Kelp. They will form a pair and lay eggs on the bottom of the water body. * Overpopulation Control: (Can be toggled in the config). When enabled, fish will automatically graze on underwater vegetation and lay eggs without player intervention. * Overpopulation Control: Eggs take exactly one in-game day to hatch into Overpopulation Control: (baby fish). The fry will take another full in-game day to grow into adults. All timings are fully configurable. * Overpopulation Control: To prevent lag, the mod tracks the number of fish per chunk. If the population exceeds the configured `OVERPOPULATION_TOLERANCE`, fish will trigger survival instincts—they may start attacking each other or eating unattended eggs to balance the ecosystem.

🧬 Tropical Fish Genetics

Breeding tropical fish now utilizes a genetics system. * Offspring inherit the base color, pattern color, and body shape from their parents. * The physical egg blocks placed on the ground will also dynamically change color based on the parents' genetics.

🐊 New Predator: The Pike

To keep the prey population in check, the mod introduces a new freshwater predator—the Player Danger:. * Player Danger: Pikes actively hunt to survive. If natural breeding is disabled, a pike needs to eat 2 random fish per in-game day to avoid starving. * Player Danger: In natural mode, a pair of pikes will lay eggs after successfully hunting. For manual breeding, you can feed them raw fish. * Player Danger: Pikes are not mindless killers. They will not attack other adult pikes or their own fry. * Player Danger: Pikes will defend themselves if attacked. A hungry pike might also bite a player if they get too close (damage scales with world difficulty).

🍳 Culinary & Items

The mod expands what you can do with fish and their byproducts: * Water Cauldron Right-click on placed fish eggs with an empty Glass Bottle to safely collect them. * Water Cauldron Craft a Glass Bottle of Fish Eggs with Bread to create a highly nutritious meal. * Water Cauldron Tropical fish can now be cooked in a furnace or smoker. * Water Cauldron Pufferfish and their eggs are highly toxic, even when cooked. To safely consume them, you must wash away the toxins by right-clicking a Water Cauldron while holding the pufferfish/eggs. This gives you a "Cleaned Pufferfish", which can then be safely cooked and eaten.

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Configuration

Most features can be tweaked via the mod's configuration file (`darwinfish-server.toml`), including natural breeding toggles, growth times, and overpopulation limits.

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You can contact me in the Discord: https://discord.com/users/790496483949412373