Brown Ramshorn Snail

Introduction

The Brown Ramshorn Snail is a peaceful and useful freshwater snail species that gets its name from the coiled, flat spiral of its shell, which resembles a ram’s horn. It ranges in color from tan to reddish-brown and is a favorite among aquarists for its algae-eating abilities and low-maintenance nature. Often found gliding along glass, plants, or decorations, it contributes to tank cleanliness and adds interest to planted and community tanks.

Origin

Found worldwide in freshwater ponds, lakes, and rivers. Common in both wild and aquarium environments due to its adaptability and fast reproduction.

Scientific Name

Planorbella duryi or Planorbis spp.

Lighting Requirements

No special lighting required – thrives under standard freshwater aquarium lighting.

Care Level

Easy – Very hardy and low maintenance. Perfect for beginners and low-tech aquariums.

Preferred Water Parameters

• Temperature: 20–28°C (68–82°F)
• pH: 7.0–8.0
• Hardness: 5–15 dGH

Prefers neutral to slightly alkaline water. Calcium is important for healthy shell development.

Placement

All Levels – Moves across glass, decorations, substrate, and plants. Will forage everywhere in the tank.

Growth Rate

Fast – Can reach up to 1 inch (2.5 cm) in diameter. Reproduces readily through egg clusters laid on surfaces.

CO₂ and Fertilizer

Not required – Does not need CO₂ or fertilizers, but thrives in planted tanks where these may be present.

Potential Problems

• Can reproduce quickly and overpopulate if overfed or no predators are present.
• May feed on soft plants if not enough algae or food is available.
• Soft water may lead to shell erosion—ensure enough calcium.

Compatible Tankmates

Very peaceful. Compatible with:

• Tetras, Guppies, and Rasboras
• Corydoras and Otocinclus
• Dwarf shrimp (like Cherry or Amano Shrimp)
• Snail-safe Betta fish

Avoid loaches, puffers, and larger cichlids that may eat snails.

Other Suitable Tank Features

• Live or silk plants
• Driftwood and rocks for surface grazing
• Low to moderate water flow

Tropical or Cold Water?

Tropical – Best suited for stable, warm freshwater aquariums, but can tolerate cooler temperatures.

What Fish Can Eat It?

Predatory or snail-eating species like Assassin Snails, loaches (e.g., Clown Loach), and puffers may prey on Brown Ramshorn Snails.

A Fun Fact

Ramshorn snails breathe air using a lung, not gills, and will often rise to the surface to take a breath — a unique behavior among aquarium invertebrates.