Ramshorn snails (Planorbis corneus) are small, freshwater snails commonly kept in aquariums and ponds. They have a distinctive spiral-shaped shell, resembling a ram's horn, hence the name. Here is a detailed description and care guide for Ramshorn snails:

Description:

Size: Ramshorn snails typically grow to be around 1-2 centimeters (0.4-0.8 inches) in diameter, although their size can vary depending on the conditions they are kept in.

Shell: The shells of Ramshorn snails are flat-coiled and come in various shades of brown, ranging from light to dark. Some individuals may have striped or banded patterns on their shells.

Body: Ramshorn snails have a soft, elongated body with a distinct head and tentacles. They use their tentacles to sense their environment and locate food.

Coloration: The body of Ramshorn snails is usually grayish-brown or reddish-brown in color.
Care Guide:

Aquarium/Pond Requirements:

Water Parameters: Ramshorn snails can tolerate a wide range of water conditions but prefer slightly alkaline to neutral water with a pH between 7.0 and 8.0. They thrive in water temperatures between 20-28°C (68-82°F).

Filtration: Adequate filtration is important to maintain good water quality. A gentle water flow is preferable to prevent snails from getting trapped or injured.

Tank/Pond Size: Ramshorn snails can be kept in various-sized tanks or ponds, depending on the population and available space. Provide enough surface area and hiding places for the snails to explore and seek shelter.
Feeding:

Diet: Ramshorn snails are omnivorous and will eat a variety of foods. They feed on detritus, algae, decaying plant matter, and leftover fish food. They can also consume soft plant tissue, so take care when keeping them with live plants.

Feeding Frequency: Provide small amounts of food once or twice a day, being mindful not to overfeed. Remove any uneaten food to prevent water quality issues.

Tank/Pond Environment:

Substrate: Ramshorn snails prefer a soft substrate such as sand or fine gravel. Avoid sharp or rough substrates that could damage their delicate shells.

Decorations: Provide plants, rocks, and driftwood as hiding places and surfaces for algae growth. Live plants can be included, but some snails may feed on them, so choose hardy species.

Lighting: Moderate lighting is sufficient for Ramshorn snails. Avoid excessive direct sunlight, as it can cause temperature fluctuations and promote algae blooms.

Population Control:

Breeding: Ramshorn snails are prolific breeders, and their population can quickly multiply under favorable conditions. If you want to control their numbers, manually remove excess snails or introduce natural predators like certain fish or assassin snails.

Water Maintenance:

Partial Water Changes: Regularly perform partial water changes to maintain water quality and remove accumulated waste and debris.

Water Testing: Monitor water parameters periodically using a test kit to ensure suitable conditions for the snails.

Ramshorn snails are generally considered beneficial aquarium or pond inhabitants, helping to clean up debris and algae. However, keep in mind that they can reproduce rapidly under optimal conditions, so population control may be necessary in some cases.

Remember to research and follow local regulations before introducing Ramshorn snails to natural bodies of water, as they may be considered invasive in some regions.

Note: The care requirements mentioned here are general guidelines and may not cover every aspect of caring for Ramshorn snails. It's always recommended to consult additional resources and seek advice from experienced hobbyists or aquatic professionals for specific care information.