Clithon Corona
It is a small but impressive freshwater snail, known for its distinctive “spiked” or “crown” shell, excellent at eating algae and generally a very quiet aquarium inhabitant.
Completely peaceful, does not disturb other species
It moves slowly and feeds constantly on algae and biofilm
It does not reproduce in freshwater (the eggs need brackish/marine conditions)
It does not eat plants
Diet:
Mainly algae and biofilm from surfaces
If there is not enough algae, you can supplement with:
Algae wafers
Blanched vegetable leaves (e.g. spinach, zucchini)
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Scientific name: Clithon corona
Common name: Horned Nerite Snail, Crown Nerite Snail
Family: Neritidae
Origin: Southeast Asia (Philippines, Indonesia, Malaysia)
Size: 1–2 cm
Lifespan: 2–5 years
Appearance characteristics:
Round, hard shell with small “spikes” like a crown
Variety of colors and patterns (yellow, brown, black, striped)
Very hard shell that offers excellent protection
Aquarium conditions:
Aquarium size: From 20 liters (also suitable for nano tanks)
Temperature: 22–28°C
pH: 7.0–8.2 (prefers alkaline water)
GH: 6–15°dGH (calcium is important for shell)
Substrate: No special requirements
Decoration: Roots, rocks, plants to collect algae
Water flow: Gentle to moderate
Tips:
The aquarium lid should be closed — it can climb out and get out.
Avoid keeping it with species that eat snails (e.g. loaches, pufferfish).
The shell needs calcium — if the water is soft, you may need a supplement.
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