The best replacement for koi is goldfish.

The best alternatives to koi are rated as following:
★★★★★  goldfish
★★★★★  carp
★★★  ai
★★  goldfish difference
★★  koi
★★  gong cha
★★  nobu
★  coy
★  comet
★  katsuya
★  arowana
★  comets
★  butterfly koi
  shubunkin
  american koi
  dansko
  goldfish pond
  japanese koi
  comet fish
  kio
  koi carp
  dragon tattoo
  carps
  grass carp

Your alternative for koi is not listed? Suggest!
Speaking about koi, one probably shouldn't forget about other fish.

Other search terms related to koi and their ratings are:
★★★★★ other fish
★★★★ lotus
★★ cherry blossom tattoo
★ lotus tattoo
★ arowana
You have in mind a companion for koi and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of koi in all years. Click on graph for more.
koi
goldfish
carp