Myer's Hillstream Loach Care Guide

Pseudogastromzon myersi · Freshwater Fish

Myer's Hillstream Loach
AI-generated illustration of Myer's Hillstream Loach
Temperature
72-82°F
pH
6.0-7.5
Adult size
~5.9″ (15 cm)
Suggested tank
20+ gal
Group size
5+ together

What Myer's Hillstream Loach look like

Pseudogastromzon myersi, commonly known as Myer's Hillstream Loach, exhibits a distinctive morphology characterized by a laterally compressed, broad, and flattened body that allows for efficient navigation over rocky substrates in its natural hillstream habitat. Adults typically reach a maximum size of 5 to 15 cm, with sexual dimorphism evident as males tend to be slightly smaller and more slender than females, particularly during the breeding season when males may develop more pronounced nuptial coloration and fin extensions. The species possesses a fused pelvic suction disc, which is a unique adaptation that aids in clinging to surfaces in fast-flowing waters. Its coloration is primarily a muted brown with subtle patterning that provides effective camouflage against the rocky environments, and it features a well-defined lateral line system that aids in detecting water movements and vibrations. The presence of small, sharp dentition allows for the scraping of algae and detritus from surfaces, while the absence of an adipose fin is notable in this genus.

Behavior & temperament

Myer's Hillstream Loach is primarily a benthic species, often found clinging to rocks and substrates in fast-flowing streams and rivers. It exhibits a solitary behavior, although it may be observed in loose aggregations in areas with abundant food resources. This species is not an obligate schooler, but it does display a social hierarchy during feeding times, where dominant individuals may assert their presence over others. Breeding behavior involves egg scattering, with females laying adhesive eggs on rocky surfaces, which males subsequently fertilize. The temperament of Pseudogastromzon myersi is generally peaceful, though it can exhibit territoriality during breeding periods, particularly among males.

Diet & feeding

In the wild, Myer's Hillstream Loach is an omnivore, primarily feeding on algae, detritus, and small invertebrates. In captivity, it requires a varied diet that includes high-quality sinking pellets, blanched vegetables, and occasional live or frozen foods such as daphnia and bloodworms to ensure optimal health and coloration.

Behind the name

The genus name 'Pseudogastromzon' derives from the Greek 'pseudo' (false) and 'gastromzon' (belly), indicating a resemblance to the genus Gastromyzon, while the species name 'myersi' honors the individual or entity associated with its discovery or description.

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Myer's Hillstream Loach?

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