Stiphodon atropurpureus (Black Kumpay Goby)

Stiphodon atropurpureus, commonly known as the Black Kumpay Goby, is a species of freshwater goby belonging to the family Gobiidae. Here are some key details about the species:

Description

• Size: A small-sized goby, typically reaching a maximum length of about 56 cm (22.4 inches).
• Coloration: It has a striking black or dark purplish hue, particularly in males during the breeding season. Females are usually less colorful, often displaying more muted tones like brown or gray.
• Body Shape: Long, slender, and streamlined, with a rounded head and slightly pointed snout. Their fins are relatively small but functional for their niche in fast-flowing streams.

Habitat

• Distribution: Native to tropical Asia, with populations found in fast-flowing freshwater streams in regions like the Philippines, Indonesia, and other Southeast Asian locales.
• Preferred Habitat: Lives in clear, high-oxygen environments with rocky or gravelly substrates. These areas often have strong currents, and the goby is well adapted for clinging to surfaces.

Behavior and Diet

• Diet: Primarily herbivorous, grazing on algae and biofilm growing on rocks and other submerged surfaces.
• Social Behavior: Generally peaceful but territorial, particularly males during mating season. They may guard a specific rock or area.
• Reproduction: Exhibits amphidromous reproduction, meaning the larvae are washed downstream into the ocean or estuaries before returning to freshwater as juveniles.

Aquarium Care

Stiphodon species are occasionally kept in aquariums by enthusiasts who appreciate their unique appearance and behaviors. Key care points include:

• Tank Setup: Replicate their natural environment with high water flow, plenty of oxygen, and smooth rocks or pebbles for grazing.
• Water Parameters: They prefer warm (2228C or 7282F), slightly alkaline water with low to moderate hardness.
• Diet: Supplement their diet with algae-based foods and occasional small invertebrates.