Red Stop Light Cardinal

Apogonichthys hyalinus

(1 Reviews)

Red Stop Light Cardinal

Red Stop Light Cardinal

Apogonichthys hyalinus

(1 Reviews)

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Red Stop Light Cardinal Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Carnivore
Origin: Indonesia
Acclimation Time: 1+ hour
Reef Safe: Yes
Minimum Tank Size: 10 gallons
Max Size: 3 inches

The Red Stop Light Cardinalfish (Apogonichthys hyalinus) occurs in the reefs of Indonesia. They have a solid red body, which helps prevent detection by both predators and prey when they hunt at night. They are nocturnal, hiding among rocks and coral during the day and hunting for small crustaceans by night. They reach a maximum size of 3 inches and should be housed in an aquarium with fish of similar size. Their diet consists of carnivorous preparations, such as mysis and krill. Given their size, they should not be kept with larger predatory fish.

Red Stop Light Cardinal (Apogonichthys hyalinus): Saltwater Aquarium Care Guide

The Red Stop Light Cardinal (Apogonichthys hyalinus) is a captivating addition to saltwater aquariums, offering enthusiasts a glimpse into the dynamic world of marine life. This comprehensive guide provides essential information on their habitat, care requirements, and why acquiring this species from is a prudent choice for hobbyists.

Red Stop Light Cardinal (Apogonichthys hyalinus) Habitat and Natural Environment:

Originating from the Indo-Pacific region, the Red Stop Light Cardinal thrives in the sheltered expanses of coral reefs. These cardinals, known for their slender bodies and vibrant colors, prefer the intricate labyrinths of coral formations, where they find refuge and forge their place in the marine ecosystem.

Red Stop Light Cardinal Reef Compatibility and Behavior:

Considered reef safe, the Red Stop Light Cardinal is an excellent choice for mixed reef tanks. Their peaceful demeanor makes them suitable for community aquariums, and their schooling behavior adds a dynamic and visually appealing dimension to the tank.

Red Stop Light Cardinal Size, Lifespan, and Sexual Dimorphism:

Typically reaching a size of around 2 inches, Red Stop Light Cardinals exhibit minimal sexual dimorphism. In terms of lifespan, when provided with optimal conditions, these captivating fish can live for several years, offering enthusiasts enduring joy and fascination.

Red Stop Light Cardinal Diet in Captivity:

Maintaining a well-balanced diet is essential for the health of Red Stop Light Cardinals. In captivity, they readily accept high-quality marine pellets or flakes. Supplementing their diet with frozen or live brine shrimp and mysis shrimp ensures they receive the necessary nutrients for vibrant coloration and overall well-being.

Red Stop Light Cardinal Aquaculture and Availability:

At, our commitment to sustainability is reflected in our sourcing practices. Red Stop Light Cardinals are sustainably coll...

Red Stop Light Cardinal Tank Requirements:

Creating an optimal environment for Red Stop Light Cardinals involves providing a tank with a minimum size of 20 gallons. Adequate hiding spaces, such as live rock formations, mimic their natural habitat and offer security. Maintain stable water parameters with a pH of 8.1-8.4, salinity ranging from 1.020 to 1.025, a water temperature between 72°F and 78°F, and moderate water flow.

Red Stop Light Cardinal Juvenile to Adult Coloration Changes:

Juvenile Red Stop Light Cardinals feature a subdued color palette, gradually intensifying as they mature. The transition to adulthood sees the emergence of their striking red and silver coloration, making them a visual delight in any aquarium setting.

Red Stop Light Cardinal Compatible Tank Mates:

Creating a compatible community in your aquarium is crucial. Red Stop Light Cardinals coexist well with peaceful tank mates such as clownfish, gobies, and other cardinalfish species. Avoid aggressive or territorial species to prevent stress and promote a harmonious aquarium environment.

Why Choose the Red Stop Light Cardinal from is synonymous with ethical sourcing and meticulous care. Our Red Stop Light Cardinals undergo a comprehensive quarantine process, ensuring they are disease-free and acclimated to aquarium life. By choosing, you invest in the well-being of your aquarium and contribute to sustainable and responsible practices within the marine aquarium hobby. Purchase your Red Stop Light Cardinal with confidence, knowing you are acquiring a healthy and vibrant specimen for your saltwater aquarium.

Beautiful Red Stop Light Cardinal swims in out of the rock formation in the saltwater fish tank. Healthy and energetic after acclimation.

Reviewed by: Orlando Asumata on Dec. 31, 2021

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