Your Guide to Buying and Adding a Decora Goby (Purple) to Your Tank

The Decora Goby, specifically the Purple variant, is scientifically known as Istigobius decoratus. This striking species offers vibrant coloration, making it a noteworthy choice for those seeking to add a touch of purple to their marine aquarium.

Choosing the Right Decora Goby (Purple)

When on the lookout for a Decora Goby:

• Opt for individuals showing a rich, deep purple hue and active behaviour.
• Steer clear of specimens displaying signs of ill health, such as ragged fins, skin lesions, or lethargic movements.

Physical Appearance

Key features of the Decora Goby (Purple) include:

• A slender, elongated body growing up to 5 inches in length.
• A dazzling purple coloration, sometimes accompanied by pale bands or patterns.
• Smaller, beady eyes and a pointed snout.

Compatibility with Other Fish

When thinking about tank companions:

• Decora Gobies are typically peaceful, coexisting with various other non-aggressive species.
• They can be a tad territorial with other gobies, so it's wise to offer enough space or keep them singly.

Reef Safe

For those maintaining a reef setup:

• Purple Decora Gobies are deemed reef safe.
• They typically do not pose a threat to corals or other invertebrates.

Suitable Tank Size

Given their moderate size:

• A minimum tank size of 75 litres is recommended. A larger environment is always better for stability and providing ample territory.

Water Conditions

For optimal health:

• Temperature: 22-25.5°C
• pH levels: 8.1-8.4.
• Specific gravity: 1.020-1.025.

Preparing Your Tank

To create the ideal habitat:

• Incorporate a sandy substrate as these gobies often like to sift through it.
• Introduce plenty of rockwork and hiding spaces to mimic their natural environment.

Monitoring Behaviour

To ensure the well-being of your Decora Goby:

• Watch for active swimming and exploration. Hiding can be typical but shouldn’t be constant.
• Ensure they don't show signs of bullying or being bullied.

Feeding Schedule

For a nourished Decora Goby:

• Being omnivorous, they benefit from a mixed diet.
• Provide marine flake food, supplemented with live or frozen foods like brine shrimp.
• Aim to feed them once or twice a day.

The Decora Goby (Purple) is a captivating species that stands out in any marine tank setup. Its serene demeanour coupled with its stunning appearance ensures it's a favourite amongst marine aquarists. Proper care, feeding, and tank conditions will ensure this gem thrives in your underwater world.