Description
Tectus fenestratus – Algae-Grazing Top Snail Tectus fenestratus is a robust, cone-shaped top snail highly valued in marine aquaria for its effective algae-grazing behavior and durability. Native to Indo-Pacific reefs, this species spends its time on live rock, glass, and substrate surfaces, feeding on film algae and diatoms, contributing to a clean and stable ecosystem. Key Facts: Scientific name: Tectus fenestratus Common name: Fenestrate Top Snail Origin: Indo-Pacific Adult size: 3–5 cm Diet: Film algae, diatoms, detritus; may accept supplemental algae wafers Behavior: Peaceful, reef-safe, active primarily during low light Compatibility: Safe with corals, fish, and other invertebrates Water Parameters: Temperature: 24–27 °C Specific Gravity: 1.023–1.026 pH: 8.0–8.4 dKH: 7–10 This species plays an important role in maintaining biological balance by consuming nuisance algae without disturbing coral polyps or sessile invertebrates. Best kept in established reef systems with sufficient natural algal growth and stable water chemistry.
