Sorted by Sizes





Rainbowfish Sizes from Small to Large

This is a compilation of rainbowfish currently available in the hobby and is sorted from small to large sizes. For brevity's sake, I have replaced the genus names of the rainbowfish with their starting initials. Here is a corresponding chart:

  • C = Chilatherina
  • I = Iriatherina
  • M = Melanotaenia
  • G = Glossolepis
  • R = Rhadinocentrus
Scientific Name Common Name Notes Max Size (Inches)

P. gertrudae Spotted Blue-eye Should be kept totally as species only. 1¼"

I. werneri Threadfin/Featherfin Rainbowfish Difficult to feed and breed. These fish should be kept species only. 1¼ - 2"

P. furcatus Forktail Blue-eye 2 - 2½"

M. maccullochi MacCulloch's Rainbowfish Better known as Dwarf Rainbowfish 2 - 3"

R. ornatus Ornate Rainbowfish 2 - 3

M. praecox Neon Rainbowfish 2½ - 3"

M. kamaka Kamaka Rainbowfish 2½ - 3"

G. pseudoincisus Tami River Rainbowfish New species. Better known as Millennium Rainbowfish. 3"

M. parva Lake Kurumoi Rainbowfish New species. Better known as Flame Rainbowfish. 3 - 3½"

M. nigrans Black-Banded Rainbowfish Better known as Dark Australian Rainbowfish. 3 - 4"

M. catherinae Waigeo Rainbowfish 3 - 4"

C. sentaniensis Sentani Rainbowfish 3 - 4"

G. ramuensis Ramu Rainbowfish 3 - 4"

M. goldiei Goldie River Rainbowfish 3 - 4"

G. wanamensis Lake Wanam Excercise caution when buying as at least 95% of those available for sale under this name are either hybrids or G. multisquamatus. 3 - 4"

M. lacustris Lake Kutubu Rainbowfish Better known as Turquoise Rainbowfish. 4 - 5"

M. herbertaxelrodi Lake Tebera Rainbowfish Better known as Yellow or Axlerodi Rainbowfish. 4 - 5"

M. species (Batanta) Batanta Island Rainbowfish New and undescribed species. 4 - 5"

M. irianjaya Irian Jaya rainbowfish 4 - 5"

C. bleheri Bleher's Rainbowfish 4 - 5"

M. duboulayi Crimson-Spotted Rainbowfish 4 -5"

C. fasciata Barred Rainbowfish 4 - 5"

M. splendida sp. All M. splendida species All species usually referred to as "Australian Rainbowfish". 5 - 6"

G. incisus Salmon Red Rainbowfish Often mistakenly called "New Guinea" Rainbowfish. 5 - 6"

G. multisquamatus
G. multisquamata
Sepik Rainbowfish Coloration varies. Green version is often mistakenly called "Emerald Green" Rainbowfish and labled as G. wanamensis. 5 - 6"

M. parkinsoni Parkinson's Rainbowfish Often mislabled as "Pakistan" Rainbowfish 5 - 6"

M. splendida rubrostriata Red-Striped Rainbowfish 5 - 6"

M. affinis New Guinea Rainbowfish Often mislabled as "North New Guinea Blue" Rainbowfish 5 - 6"

M. trifasciata Banded Rainbowfish Often labeled incorrectly with the local as its Common name. Ie: "Goyder River Rainbowfish", which is incorrect, instead of "Banded Rainbowfish, Goyder River". 5 - 6"

G. dorityi Dority's Rainbowfish New species. Commonly called "Zig Zag" Rainbowfish. **Although the size of this fish has been recorded as being from 3-4", 5 year old Zig Zags in excess of 8" in length are currently being kept in aquaria. ** 8"




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