Yo-Yo Loach

The Yo-Yo Loach (Botia almorhae / Botia lohachata) is an energetic, intelligent, and highly engaging freshwater fish well known for its playful behavior and bold patterning. Native to rivers and streams of northern India and Nepal, this species thrives in flowing, oxygen-rich waters with a sandy or smooth substrate.

Yo-Yo Loaches get their name from the distinct dark markings along their silvery body, which often resemble the letters “Y-O-Y-O,” especially in juveniles. As they mature, these markings become more intricate, forming a maze-like pattern that gives adults a striking, ornamental appearance. Their elongated bodies, downward-facing mouths, and sensitive barbels make them well adapted for foraging along the bottom of the aquarium.

This species is best known for its lively, social personality. Yo-Yo Loaches are active during the day and constantly on the move—darting through caves, weaving between décor, and engaging in playful interactions with one another. They should always be kept in groups of three or more, as solitary individuals can become stressed or overly aggressive. In groups, they establish a loose hierarchy that includes harmless chasing and “clicking” sounds, which are produced by their pharyngeal teeth.

Yo-Yo Loaches are excellent cleanup and pest-control fish, especially valued for their ability to consume pest snails. They are omnivorous scavengers and should be fed a varied diet including sinking pellets, frozen foods (bloodworms, brine shrimp), live foods, and occasional vegetable matter such as blanched zucchini or spinach. A diverse diet supports their health and vibrant coloration.

Ideal Water Parameters

To keep Yo-Yo Loaches healthy and active, stable water conditions are essential:

• Temperature: 75–82°F (24–28°C)

• pH: 6.0–7.5

• Hardness: 5–12 dGH

• Flow: Moderate (they enjoy gentle current)

• Oxygenation: High (good filtration and surface agitation recommended)

A well-planted aquarium with driftwood, rocks, caves, and hiding spots closely mimics their natural habitat and helps reduce stress. Fine sand or smooth gravel is strongly recommended to protect their delicate barbels.

When properly housed and cared for, Yo-Yo Loaches can grow 5–6 inches and live 10–15 years, making them a long-term and rewarding addition to community aquariums. Their combination of personality, utility, and visual appeal makes them a standout choice for aquarists seeking an active and intelligent bottom-dwelling fish.