HomeBusinessExploring the Fascinating World of Opae Ula: A Comprehensive Guide

Exploring the Fascinating World of Opae Ula: A Comprehensive Guide

Opae Ula, also known as Halocaridina rubra, are captivating creatures that have been gaining popularity among aquarists and marine enthusiasts. In this comprehensive guide, we delve into the intricacies of Opae Ula, from their natural habitat to care requirements, and where to find Opae Ula for sale and wholesale Opae Ula.

Understanding Opae Ula

Natural Habitat

Opae Ula are native to the Hawaiian Islands, where they inhabit anchialine pools, which are landlocked bodies of water with underground connections to the ocean. These pools are characterized by their unique brackish water, fluctuating salinity levels, and minimal fluctuations in temperature and pH.

Physical Characteristics

Opae Ula are small, shrimp-like crustaceans, typically measuring between 1 to 2 centimeters in length. They have a translucent body with a reddish hue, which becomes more vibrant in well-established aquariums. Their small size and striking coloration make them an attractive addition to any aquatic environment.

Care and Maintenance

Tank Setup

When setting up a habitat for Opae Ula, it’s essential to replicate their natural environment as closely as possible. A suitable tank should include a substrate of fine sand or crushed coral, along with live rock or artificial structures to provide hiding spots and grazing areas.

Water Parameters

Maintaining stable water parameters is crucial for the health and well-being of Opae Ula. Ideally, the water should have a salinity level of around 1.010 to 1.015 specific gravity, with a pH range of 7.8 to 8.2. Regular monitoring and adjustments may be necessary to ensure optimal conditions.


Opae Ula are scavengers by nature and will feed on algae, biofilm, and microorganisms present in the aquarium. Supplemental feeding is rarely required, as they can sustain themselves on natural sources of food. However, occasional feedings of specialized shrimp or fish food can be offered in moderation.

Where to Find Opae Ula


For hobbyists looking to add Opae Ula to their aquarium, there are several online retailers and local fish stores that offer these fascinating creatures for sale. It’s essential to source Opae Ula from reputable suppliers to ensure their health and quality.

Wholesale Suppliers

For businesses and enthusiasts looking to purchase Opae Ula in bulk quantities, there are wholesale suppliers that cater to the aquarium trade. These suppliers often offer competitive pricing and shipping options for larger orders.


Opae Ula are truly remarkable creatures that bring a touch of the exotic to any aquarium. With proper care and maintenance, they can thrive in a well-established tank, providing endless enjoyment for aquarists of all levels. Whether you’re a beginner or seasoned hobbyist, adding Opae Ula to your aquatic collection is sure to be a rewarding experience.

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