Revision 4

Overview

Fish pond breeding allows you to raise and breed fish on your own property in Starsand Island, producing eggs that can be hatched into new fish. This system works alongside the main fishing profession and the Aquarium feature, giving you a passive source of fish without needing to visit fishing spots. Setting up a fish pond requires progress in the Angler profession and specific crafting materials.

Fish ponds come in three sizes, each with different footprints and oxygen capacities. The oxygen level of your pond determines how many fish it can support at once, and maintaining adequate oxygen is essential for successful breeding.

Getting Started

Prerequisites

• Reach at least Intermediate Angler certification from Delphin at the AquaBlue Outpost.

• Purchase the Small Fish Pond blueprint from the AquaBlue Outpost shop.

• Purchase the Chopper II blueprint to craft Fish Feed (the basic Chopper cannot produce the correct feed grade).

• Have available land on your property (Hopeland, Cloudrest Lake, Blue Beach, or Windflute Island) to place the pond.

Placing the Fish Pond

Open Build Mode (C key) and place the Small Fish Pond on your property. The pond requires a flat area and cannot overlap with other structures. Once placed, you can interact with it to access the pond management interface.

Pond Sizes

Three fish pond sizes are available, each purchasable from Delphin at AquaBlue Outpost. Larger ponds support more fish and have higher oxygen capacity, but require more space on your property.

The Medium Fish Pond is very large and takes up almost an entire plot of land. Plan your property layout carefully before placing one.

Oxygen System

Each fish species consumes a certain amount of oxygen. The pond's total oxygen capacity determines how many fish it can hold. If the oxygen level drops too low, fish become stressed and stop producing eggs. Maintain adequate oxygen by not overstocking your pond.

• The Small Fish Pond and Stone Fish Pond each have 12 O2 capacity.

• The Medium Fish Pond has 40 O2 capacity, supporting significantly more fish.

• Monitor the oxygen meter on the pond's management interface to avoid overstocking.

Expansion Materials

Each pond type must be upgraded with an incubator before it can breed fish. The incubator expansion requires the same materials for all three pond sizes:

Adding Fish

Interact with the pond and select the stock tab to add fish from your inventory. Fish you have caught while fishing can be placed into the pond. Each fish consumes oxygen based on its species, so check the oxygen meter before adding more.

• Place at least one male and one female fish of the same species into the pond. Having both genders increases the chance of egg production.

• Fish gender is shown in the item tooltip when you hover over them in your inventory.

• Different species can coexist in the same pond, but breeding only occurs between fish of the same species.

• More fish of the same species in the pond increases the egg generation rate. Multiple breeding pairs produce results faster than a single pair.

Installing the Incubator

To enable egg production, you need to upgrade your pond with an incubator. Without the incubator installed, fish will not produce eggs regardless of how well they are fed.

1. Interact with the fish pond and switch to the Incubator tab.

2. Gather the expansion materials: 4 Glass Pane, 2 High-Performance Wire Set, 4 Iron Ingot.

3. Build the incubator using the materials.

4. Once installed, the incubator allows your fish to produce eggs when properly fed.

Feeding and Egg Production

Crafting Fish Feed

Fish Feed is crafted at the Chopper II station using fish or other aquatic materials. You will need at least 10 portions of Fish Feed to start the breeding cycle. Place the feed into the pond through the management interface. The basic Chopper cannot produce the correct grade of Fish Feed, so make sure you have the Chopper II blueprint.

Egg Production Timeline

• After placing feed in the pond, fish will begin producing eggs within 1 to 2 in-game days.

• You will receive a morning notification that there is "something extra" in the pond.

• Interact with the pond to collect the eggs from the stock tab.

• Eggs are placed in your inventory and can then be loaded into the Incubator tab to begin hatching.

• More fish of the same species in the pond increases the chance of eggs being produced each day.

Hatching Eggs

Once you have collected eggs, switch to the Incubator tab on the pond and place the eggs there. Hatching takes a set amount of time depending on the fish species. When hatching is complete, the new fish appears in the pond automatically.

• Common fish species hatch faster than rare or deep-sea varieties.

• The incubator can process one batch of eggs at a time.

• Hatched fish count toward your Islandpedia collection.

• Hatched fish can be placed back into the same pond or moved to a different pond or the Aquarium.

Stone Pond vs Small Fish Pond

Players have widely reported that the Stone Pond produces eggs more reliably than the Small Fish Pond. If you are not seeing eggs after a full in-game day with the Small Fish Pond, try the following:

1. Craft a Stone Fish Pond and place it on your property.

2. Build the incubator upgrade on the Stone Pond using the same materials (4 Glass Pane, 2 High-Performance Wire Set, 4 Iron Ingot).

3. Transfer all your fish from the Small Pond to the Stone Pond.

4. Stock the Stone Pond with Fish Feed.

5. You should see eggs the very next morning.

Breeding Workflow Summary

Here is the complete workflow from start to finish for breeding fish:

1. Reach Intermediate Angler and purchase the Small Fish Pond blueprint from Delphin.

2. Place the pond on your property and build the incubator upgrade.

3. Catch fish (at least one male and one female of the same species).

4. Place fish in the pond.

5. Craft Fish Feed at the Chopper II and stock the pond with at least 10 units.

6. Wait 1 to 2 in-game days for eggs to appear.

7. Collect eggs from the stock tab and place them in the Incubator tab.

8. Wait for hatching to complete. New fish appear in the pond automatically.

9. Repeat. Keep the pond stocked with feed to continue the breeding cycle.

Tips for Fish Pond Breeding

Related Articles

• Fishing

• All Fish

• Aquarium

• Chopper

• Deep-Sea Fishing Zones

• AquaBlue Outpost

• Angler Trial Walkthroughs

• Islandpedia