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Koi Farm

Koi Farm – Ultimate Breeding Guide

This guide will be covering the details on how you can properly breed your fishes in Koi Farm game. We will also be showing you how you can breed rare koi in the game.

By default, you will be able to get the color white, black, yellow, and gray in the river. Gray-colored koi are rarely seen in the river but they are appearing at the start of the game. One of the best advice we can give you is that as you will likely get a rare mutation when you rush breed the same 2 fishes.

Mixing Same Solid-Colored Koi

  • White + white = 4-5 white
  • Black + black = 4-5 black
  • Yellow + yellow = 5 yellow / 4 yellow + 1 orange (~30% chance)
  • Orange + orange = 4-5 orange / 3 orange + 1 yellow (~30% chance) / 3 orange + 2 red (~11% chance)
  • Red + red = 4 red / 2-3 red + 1-2 orange (~30% chance)
  • And so on…

Koi Farm

How to Get Rare Mutations

There are a few breed mutations that are considered rare. The following colors are considered rare fish mutations.

Red Koi

Breed the same 2 orange fishes until you get the red mutation. ~11% chance. Fishes with red color (in any proportion) could give an orange mutation in their offspring with ~10% chance.

Here are my 15 attempts of breeding 2 same orange fishes and its results:

  • 5 orange
  • 4 orange + 1 yellow
  • 5 orange
  • 5 orange
  • 5 orange
  • 5 orange
  • 4 orange + 1 yellow
  • 4 orange + 1 yellow
  • 3 orange + 2 red
  • 3 orange + 2 red
  • 3 orange + 2 red
  • 3 orange + 2 red
  • 3 orange + 2 red
  • 5 orange
  • 5 orange

Orange Koi

Breed the same 2 yellow fishes until you get the orange mutation. ~30% chance. Fishes with orange color (in any proportion) could give a yellow mutation in their offspring with ~10% chance.

Pink Koi

Breed 2 red fishes. It took me about 15 attempts to get the pink finally.

3 to 4 Striped Koi

Breed 2 spotted fishes with the same dominant and additional colors until you get the mutation needed. Sometimes it’s needed to do 3-4 times.

Brindle Koi

Breed 2 spotted fishes with the same dominant and additional colors until you get the mutation needed. Sometimes it’s needed to do 3-4 times.

Color Mixing Strategy

Mixing 2 Different Solid-Colored Koi

Mixing 2 different solid colors could give you offspring with only solid-coloured fishes, but there is a ~50% chance that you’ll get 1-2 spotted fishes. There is a chance to get a fish with any dominant color (for example, black with 2 white spots or reverse – white with 2 black spots). The number of spots could be from 1 to 3.

Just keep breeding the same fishes until you get the pattern mutation needed. The proportion of the fish amount of every colouration could be different, so I just marked possible results without numbers. Names of colors are shortened by their first letters.

  • White + black = pure white / pure black / 1-2 wthite + 1-2 black + 1 spotted b&w
  • White + yellow = pure white + pure yellow + spotted (white & yellow) / spotted (orange & white) / pure orange
  • White + orange = white; orange; yellow; spotted (w&o / w&y)
  • White + red = pure white / pure red / pure orange/ spotted (white & red) / spotted (white & orange)
  • And so on…

Mixing 2 Solid-Colored Koi

Will give you spotted fishes.

Mixing 2 Colored with Solid-Colored Koi

Will give you 3-colored fishes. Choose the spotted fish with the dominant color needed and breed it with the fish with the solid color you want to add.

Mixing 2 Double-Colored Koi

If fishes have the same dominant color and different additional color will give you 3 colored fish, the dominant color will be saved. Unique patterns block the color adding, so pick up only solid and spotted fishes for this.

If fishes have different dominant colors, the offspring will repeat parents color combinations and patterns. This combination will give only color mutation (orange → red, red → orange, yellow → orange, orange → yellow) and the color inversion as a unique result.

Example of a working combination:

Spotted (white & yellow) + spotted (white & black) → spotted (w&y; w&b) + pure + spotted (w&y&b)

Example of a failed combination:

Spotted (b&w) + spotted (red & yellow) → spotted (b&w); spotted (red & yellow); spotted (orange & yellow)

Koi Farm

Mixing Pattern Strategy

Here you need to do breeding with the second generation fishes.

  1. Solid color (white) + solid color (black) → spotted fish (w&b)
  2. Solid color + spotted → different variations of spots
  3. Spotted + spotted → more different variations of spots (it’s better)

To make a unique pattern you have to pick up fishes with the same dominant color.
If you’ll pick fishes with different dominant colors it wouldn’t work, the offspring will repeat the parents’ patterns. Breeding 2 fishes with the same pattern could give you an inverse color version (for example, 2 black fishes with 3 lines on a back will give in their offspring 1 white fish with 3 black lines).

There are 6 patterns: solid (pure color without pattern), spotted (1-3 random spots), 3 or 4 lines (3 or 4 transverse lines on a back), 1 longitudinal line on a back, brindle (a lot of spots). All patterns besides the solid and spotted one are final, they won’t give you new patterns when mixing besides inverse coloration.

Here are only 2 combinations that work:

  • Spotted + spotted → spotted; 3 lines; 4 lines; brindle
  • spotted + 3 lines → spotted; 3 transverse lines; 1 longitudinal line

Other combinations will repeat parents patterns.

Written by Lamacriminal.
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By Earl Stewart

Earl is one of those gamers who will play almost any new games. But he more prefers playing FPS and open world games.