Pictures of fish and fish in store may vary, these are just examples/fully grown fish

The Bloody Mary Hillstream Loach is a stunning and rare freshwater fish that adds an extraordinary pop of color to any aquarium. With its rich, deep red to crimson body and the characteristic flattened shape of hillstream loaches, this species is both beautiful and fascinating to observe. Native to fast-flowing streams, the Bloody Mary Hillstream Loach is an excellent algae grazer and thrives in well-oxygenated tanks with high water movement. Its peaceful temperament and unique appearance make it a perfect addition to specialized community tanks, particularly those mimicking riverine environments.

Care Guide

Tank Requirements

• Tank Size: A minimum of 20 gallons is recommended for a small group of Bloody Mary Hillstream Loaches. Larger tanks are preferable, especially if keeping multiple loaches, to replicate their natural habitat more effectively.
• Substrate: Sandy or fine gravel substrates are ideal, as these loaches enjoy exploring and foraging along the tank bottom. Ensure the substrate is smooth to avoid injury to their delicate underbelly.
• Decor: Provide plenty of smooth river rocks, driftwood, and caves for hiding. The loaches will often cling to these surfaces, emulating their natural behavior in the wild. Live plants are also beneficial, offering additional hiding spots and improving water quality.
• Flow and Filtration: These loaches thrive in tanks with high water flow and well-oxygenated water. A strong canister filter or powerhead to create a current is essential, as it mimics the fast-flowing streams of their natural habitat.

Water Parameters

• Temperature: 68-75°F (20-24°C). Cooler water temperatures are preferred, and it’s important to avoid sudden fluctuations.
• pH Level: 6.5-7.5. They prefer slightly acidic to neutral water conditions.
• Water Hardness: Soft to moderately hard water (4-12 dGH).

Diet

• Primary Diet: The Bloody Mary Hillstream Loach is primarily an algae grazer. They will feed on biofilm, algae, and other microorganisms that naturally grow on rocks, glass, and other surfaces in the aquarium.
• Supplementary Feeding: In addition to naturally occurring algae, their diet can be supplemented with high-quality sinking algae wafers, spirulina-based foods, and blanched vegetables such as zucchini or cucumber. Protein-rich foods like frozen or live bloodworms, brine shrimp, and daphnia can also be offered occasionally.
• Feeding Frequency: Feed small amounts once or twice a day. Ensure food reaches the bottom of the tank where they can easily access it.

Behavior and Compatibility

• Temperament: Peaceful and generally shy. These loaches prefer the company of their own kind and do best in groups of 3 or more.
• Tank Mates: They are compatible with other peaceful, small to medium-sized fish that share similar water requirements. Good tank mates include small tetras, rasboras, other loaches, and peaceful dwarf cichlids. Avoid aggressive or overly large fish that may intimidate or outcompete them for food.
• Social Behavior: Bloody Mary Hillstream Loaches are social and thrive in small groups. They often interact with each other and can display interesting social behaviors, such as following each other around the tank or sharing the same surface area.

Breeding

• Breeding Difficulty: Difficult in captivity. Successful breeding of Gastromyzon species, including the Bloody Mary, is rare and typically requires very specific conditions that mimic their natural spawning environment.
• Breeding Setup: If attempting to breed, provide a dedicated breeding tank with a strong current, plenty of hiding places, and smooth rocks for egg-laying. Slightly cooler temperatures and seasonal changes in water parameters may trigger spawning.
• Egg Care: Eggs are typically deposited on rocks or other hard surfaces. After spawning, remove adults to prevent them from eating the eggs.

Maintenance

• Water Changes: Regular water changes (25-30% weekly) are crucial to maintaining water quality and ensuring the loaches’ health. Because they are sensitive to pollutants and ammonia spikes, clean, well-oxygenated water is essential.
• Algae Control: These loaches help control algae in the aquarium, but they are not a substitute for proper tank maintenance. Ensure the tank is kept clean, and avoid allowing algae growth to become overwhelming.

Summary

The Bloody Mary Hillstream Loach is a captivating addition to any freshwater aquarium, offering both aesthetic beauty and natural algae control. Its unique coloration and fascinating behavior make it a standout species for aquarists looking to create a riverine environment. While they require specific tank conditions, such as high water flow and well-oxygenated water, their care is straightforward with the right setup. Perfect for both seasoned aquarists and those looking to expand their collection with something truly special, the Bloody Mary Hillstream Loach is a rare gem in the aquatic hobby.

Enhance your aquarium with the vibrant beauty of the Bloody Mary Hillstream Loach and enjoy the natural algae control and unique behavior they bring to your aquatic environment.