Redtail Botia

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Yasuhikotakia modesta - (Bleeker, 1864)
Redtail Botia

One of the larger aquarium loaches that does best when kept in groups.


This is one of the more heavy-bodied loaches, a substantial and lovely fish with a bluish gray body. Its fins come in a variety of colors, including red, orange and yellow.They are highly territorial and may make clicking sounds during feeding and periods of in-fighting.

Family: Cobitidae

Other common name(s):

  • Blue Botia
  • Red-Finned Loach

Native range:

Habitat: Although they will become quite large, initially they can be kept in a smaller, 20-gal. (76 L) aquarium with excellent filtration. They prefer subdued lighting and are active diggers that will require a fine-grade or smooth gravel substrate in which to “grub.” Somewhat rowdy, so provide plenty of hiding places for other fish to escape them.

Maximum length: 20 cm (8 in)

Minimum aquarium size: 152 L (40 gal)

Water: Freshwater 22 °C (72 °F) - 26 °C (79 °F)

General swimming level: Bottom.


Redtail Botia are greedy eaters that will accept a wide variety of good-quality flake foods, sinking pellets, algae wafers and frozen foods, such as bloodworms and mysid shrimp.

Aquarium Compatibility

Because of their rowdy temperaments, these fishes should be kept with similar fish, such as barbs. To best see their playful antics, keep a group of at least three. Like the Clown and other loaches, these fishes also have a distinct hierarchy, with a definite “boss fish.”


Not reported in the aquarium.


They possess cheek spines that may become entangled in nets.

Reference: 101 Best Tropical Fishes
Image credit: JJ
Text credit: KW