A fish is worth more than the resource it yields. Any fish can be ground into Fish Meal, pressed into fish oil or cooked and eaten.

Fish Meal#

The Triturator grinds fish into Fish Meal. How much depends on the fish:

  • A resource fish gives its resource and one Fish Meal, every time.
  • A vanilla fish and the Candlefish have no resource, so they give two Fish Meal.
Iron Nugget, Fish MealTriturator
4,000 FE
3
Fish MealTriturator
4,000 FE
2

The Vortex Separator also gives Fish Meal as a byproduct when it presses fish into oil, at 50% of the time.

What it does#

  • Bone meal. Fish Meal fertilises crops exactly as bone meal does.
  • Fish food. A Spawning Basin eats one food per breeding, and Fish Meal counts alongside wheat, carrots, potatoes and beetroot.
  • Ecotone feed. Put it in the Ecotone's meal slot. Each Fish Meal feeds 1.5 breedings, and while a breeding is fed, each resource yield has a 50% chance of being doubled.
  • Crafting. It is the base of the Kelp Module, and the catalyst in the Reaction Vat that makes biodiesel.

A worked example. One cod ground in a Triturator gives 2 Fish Meal, which feeds 3 breedings. A cod farm grinding its young therefore keeps several resource farms fed.

Fish oil#

The Vortex Separator presses any raw fish into fish oil, with a chance of Fish Meal. Which recipe applies depends on the fish, and no fish matches more than one:

Fish OilVortex Separator
1,000 FE
50%25 mB
Fish OilVortex Separator
1,500 FE
50%50 mB
Fish OilVortex Separator
2,000 FE
50%100 mB

The Candlefish is bred from a pair of salmon with an Oil Glob as the catalyst (species page). It never yields a resource and breeds copies of itself like a vanilla fish, so a Candlefish Ecotone is an oil farm.

What oil is for#

Fish oil counts as a plant oil. It burns in an Ignition Engine for 100,000 FE a bucket, and it is the oil input of the biodiesel recipe, which burns for 400,000 FE a bucket. Fuel chains compares the routes.

Cooked fish#

Every bred fish cooks in a furnace, a smoker or on a campfire into a cooked version. Each restores 5 hunger and the usual saturation, and a few themed fish also grant a short effect when eaten. The effect is shown in the item's tooltip, because the game does not list food effects itself.

Cooked fishEffectLasts
Cooked Gilded KoiAbsorption30 s
Cooked Ancient CoelacanthFire Resistance60 s
Cooked Slick EelFire Resistance30 s
Cooked Uranic GarGlowing30 s
Cooked Volt PufferHaste30 s
Cooked Beryl DarterHero of the Village60 s
Cooked Slime GobyJump Boost30 s
Cooked Purpur BoxfishLevitation3 s
Cooked Beacon BassNight Vision120 s
Cooked LanternfishNight Vision60 s
Cooked Diamond RayResistance30 s
Cooked PearlfishSlow Falling30 s
Cooked Prism TangWater Breathing60 s

Every other cooked fish is plain food. The alloy fish have no effects by design. The Purpur Boxfish's levitation is a joke: it is over before you have gone anywhere.

With Mekanism#

With Mekanism installed, a Mekanism crusher also grinds fish into their resources. A crusher has a single output, so you get the resource count without any Fish Meal.

Iron NuggetMekanism CrusherNeeds Mekanism
3

Crusher recipes exist for every fish whose resource Mekanism can output, using Mekanism's own nuggets where the resource is a metal. Fish whose resource comes from another mod crush into that mod's item, and only when both mods are loaded. These fish have no crusher recipe and stay with the Triturator: Amber Tetra, Bauxite Barb, Brassback Snapper, Constance Carp, Ironclad Trout, Nickeled Pike, Platinate Sturgeon, Sterling Smelt, Zincfin.

A Prized fish gets no bonus in the crusher; see Prized fish.