Quick Overview of the Horned Nerite Snail
The Horned Nerite Snail (Clithon corona, often called the Thorney Nerite Snail) is an extraordinary freshwater invertebrate native to the tidal river mouths, brackish estuaries, and coastal streams of Southeast Asia, including parts of the Philippines. Reaching a tiny adult size of just 0.25 to 0.5 inches (0.6 to 1.3 cm), it is one of the smallest and most efficient algae-eating snails available in the hobby. It features a bold, high-contrast spiral shell in shades of bumblebee yellow, dark amber, or pitch-black, armed with several sharp, raised keratin spikes. Because their eggs require brackish/saltwater to hatch, they will never reproduce or overpopulate your freshwater aquarium.
Tank/Plant Profiles & Environmental Requirements
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Care Level: Very Easy / Extremely Hardy
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Growth Rate / Activity: Slow Growth; Non-Stop Dedicated Algae Cleaner
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Lighting: Low to Bright (Appreciates lighting that supports natural biofilm and spot algae growth)
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Temperature: 22°C – 28°C (Thrives naturally in Bacolod’s tropical climate)
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Tank Placement: Glass, Hardscape & Delicate Leaf Cleaner (Scrapes algae off surfaces without breaking stems)
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Minimum Tank Size: 5 Gallons (1–2 snails per 5 gallons ideal for nano setups)
Local Care Tips for Bacolod Aquarists
Bacolod Tap Water Match & Mineral Shell Care: Horned Nerite Snails thrive exceptionally well in Bacolod’s typical neutral-to-slightly-hard, mineral-rich tap water parameters (pH 7.0–7.8). The naturally occurring dissolved calcium and magnesium in local water are vital for maintaining thick, healthy shells and preventing horn erosion. Simply treat your tap water with a high-grade dechlorinator during routine changes. Never use copper-based medications in your aquarium, as dissolved copper is toxic to all snails and invertebrates.
Aquascaping & Safe Plant Cleaning: Because of their feather-light weight and miniature footprint, Horned Nerites are unmatched at cleaning soft-leaved plants like Monte Carlo, Dwarf Hairgrass, or delicate mosses without uprooting or damaging them. Arrange your layout with Seiryu stones and local driftwood covered in epiphytes like Anubias Nano, Java Ferns, or Bucephalandra. Always leave the rhizomes of these epiphytes exposed above the soil to keep them from rotting!
Dietary Specifics & 100% Peaceful Community Harmony: Horned Nerites are strict herbivores that spend virtually all day scraping tough green spot algae, film algae, and diatoms (brown algae) off aquarium glass and hardscape. In mature tanks with established algae, they rarely need supplementary feeding; in pristine tanks, offer sinking spirulina wafers or repashy gel foods. They are completely harmless and possess zero aggression, making them 100% safe companions for Neocaridina/Caridina dwarf shrimp, Betta fish, Micro-Rasboras, Tetras, and Corydoras. Always keep a tight-fitting lid on your aquarium, as they occasionally crawl above the waterline during night shifts!
