Purple Stripe Dottyback

Purple Stripe Dottyback
Latin name:
(Pseudochromis diadema)

Care Level





Purple, Yellow



Preferred Conditions

sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4

Avg. Max Size


Minimum Tank Size

30 gallons


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Are you looking to add a vibrant and active fish species to your marine aquarium? Look no further than the Purple Stripe Dottyback, a captivating fish that will bring life and color to your underwater world. With its striking purple stripes and playful behavior, this fish is sure to become a favorite among aquarium enthusiasts.

Purple Stripe Dottyback: An Overview

The Purple Stripe Dottyback, scientifically known as Pseudochromis porphyreus, is a small but feisty fish belonging to the family Pseudochromidae. Found in the tropical waters of the Indo-Pacific region, this fish typically inhabits coral reefs and rocky areas at depths ranging from 10 to 100 feet.

The Purple Stripe Dottyback is known for its distinctive appearance. Its body is adorned with vibrant purple stripes that run horizontally across its sides. These stripes are often accompanied by a yellow or orange hue, creating a stunning visual display. The fish’s dorsal fin is typically transparent, while its anal fin is often edged with a bright blue or green color.

Behavior and Temperament

The Purple Stripe Dottyback is an active and playful fish that is always on the move. It is known for its inquisitive nature and will often swim around the aquarium, exploring every nook and cranny. This fish is also known to be quite bold and may even approach divers or snorkelers in the wild.

In terms of temperament, the Purple Stripe Dottyback can be somewhat aggressive towards other fish, especially those of similar size or appearance. It is best kept in a species-only aquarium or with tankmates that are significantly larger or smaller. This fish is also known to be a jumper, so a tight-fitting lid is essential to prevent it from escaping.

Diet and Nutrition

The Purple Stripe Dottyback is a carnivorous fish that feeds primarily on small invertebrates such as copepods, amphipods, and mysid shrimp. It is also known to eat brine shrimp and frozen foods. To ensure a healthy and balanced diet, it is important to offer a variety of live and frozen foods to your Purple Stripe Dottyback.

Habitat and Tank Requirements

The Purple Stripe Dottyback requires a well-established marine aquarium with plenty of live rock and hiding places. A tank size of at least 30 gallons is recommended for a single fish, with larger tanks required for multiple individuals. The water should be kept at a temperature range of 72 to 78 degrees Fahrenheit and a pH of 8.1 to 8.4.

Regular water changes and maintenance are essential for keeping the Purple Stripe Dottyback healthy. A protein skimmer and a refugium are also recommended to help maintain water quality. Additionally, it is important to provide strong water movement in the aquarium to mimic the fish’s natural habitat.


The Purple Stripe Dottyback is a captivating and active fish that can add a splash of color and personality to your marine aquarium. With its vibrant purple stripes and playful behavior, this fish is sure to become a favorite among aquarium enthusiasts. By providing the proper care and environment, you can ensure that your Purple Stripe Dottyback thrives and brings joy to your underwater world for years to come.


  • Q: Is the Purple Stripe Dottyback a good fish for beginners?
  • A: While the Purple Stripe Dottyback is a relatively hardy fish, it is not recommended for beginners due to its aggressive behavior and specific dietary requirements.
  • Q: What is the lifespan of a Purple Stripe Dottyback?
  • A: With proper care and maintenance, the Purple Stripe Dottyback can live for up to 10 years in captivity.
  • Q: What are some compatible tankmates for the Purple Stripe Dottyback?
  • A: Suitable tankmates for the Purple Stripe Dottyback include larger, peaceful fish such as angelfish, butterflyfish, and tangs.