Horned Nerite Snail

Clithon corona hails from brackish and freshwater streams across Southeast Asia and parts of the Pacific, often found clinging to rocks in areas with moderate current. What sets it apart from the more common olive or tiger nerite is those dramatic spike-like projections radiating from the shell, which genuinely look like a tiny crown. Shell patterns vary quite a bit between individuals, ranging from yellow and black banding to dark brown with orange spots, so no two are exactly alike.

Despite its ornate appearance, this snail is genuinely low-maintenance. It spends most of its time methodically grazing on algae films across glass, rocks, and hardscape. It won't touch healthy plant tissue, making it one of the few cleanup crew members that's truly plant-safe.

Water hardness matters more than most beginners realize. Soft or acidic conditions will slowly erode the shell, so keeping GH above 8 and pH around 7 or higher is important for long-term health. Temperature tolerance is decent, though like most nerites it appreciates stability over extremes.

It doesn't need a lot of space, a 10-liter nano tank is genuinely sufficient for a few individuals. Feed supplemental algae wafers or blanched vegetables if your tank is very clean and algae is scarce, otherwise it'll find its own food.

If you want to see how hobbyists are actually using Clithon corona in real aquascapes and nano setups, browsing community tank builds is a great way to find inspiration for pairing these tiny living sculptures with the right plants and hardscape.