Spiny Marsh Snail (Thiara amarula)

The Spiny Marsh Snail (Thiara amarula) offers a unique combination of beauty and utility for freshwater aquariums. Known for its distinct spiny shell and efficient algae-eating habits, this hardy snail originates from regions such as Australia, India, Indonesia, Madagascar, Mauritius, and Papua New Guinea.

Appearance:

Spiny Marsh Snails grow up to 5-6 cm in length, showcasing a striking shell in shades of brown, blue, and black. Their unique, spiny shell design makes them a rare and attractive addition to any aquarium. Because they are not commonly found in trade, adding them to your tank will make your setup stand out.

Aquarium Care:

To keep Spiny Marsh Snails healthy and active, provide a substrate of sediment and gravel where they can burrow and aerate the tank. They thrive in environments that mimic their natural habitat, such as cold freshwater streams with rocks and pebbles. While they effectively consume algae and detritus, they prefer to burrow during the day to avoid bright light, becoming more active at night under lower lighting conditions.

Tank Mates:

These snails pair well with non-aggressive fish and various shrimp species like Neocaridina (cherries), Australian shrimp, and Red Nose Shrimp. However, they don’t do as well with other Caridina genus shrimps like Red Crystal Shrimp and Bee Shrimp, which prefer more acidic water conditions. Since Spiny Marsh Snails don’t reproduce uncontrollably, you can easily manage their population in your aquarium.

Feeding & Nutrition:

Spiny Marsh Snails thrive on a diet rich in excess algae and detritus, making them excellent cleaners for your aquarium. If natural algae are insufficient, they readily accept fish food, shrimp food, and boiled vegetables like cucumber and zucchini. You can also supplement their diet with commercial pellets, flakes, or leafy greens like spinach and mulberry leaves.

Breeding Information:

Breeding Spiny Marsh Snails in captivity is challenging because they release free-swimming veliger larvae that typically migrate to brackish water before returning to settle. This unique requirement makes breeding in freshwater aquariums unlikely, so their population remains stable.

FAQs:

What size tank works best for Spiny Marsh Snails?
A tank of at least 40 litres provides enough space for these snails to burrow and explore.

Can Spiny Marsh Snails live with shrimp?
Yes, they coexist well with non-aggressive shrimp species like Neocaridina and Australian shrimp, though they are less compatible with Caridina species.

How often should I feed Spiny Marsh Snails?
Feed them as needed, especially when natural algae are scarce. They readily accept commercial pellets, flakes, and boiled vegetables.

Are Spiny Marsh Snails good for planted tanks?
While they can be kept in planted tanks, their burrowing behaviour might cause some plants to become dislodged.

How long do Spiny Marsh Snails live?
With proper care and stable water conditions, these snails can enjoy a long, healthy life in your aquarium.

Species Overview:

• Species: Thiara amarula
• Common Name: Spiny Marsh Snail
• Origin: Australia, India, Indonesia, Madagascar, Mauritius, Papua New Guinea
• Diet: Herbivore
• PH Range: Alkaline 6 – 8.0
• Temperature: Tropical 16°C – 25°C
• Breed Type: Egg Layer
• Max Size: Approximately 5-6 cm
• Sex: Un-sexed