• General Overview

  • The Longifilis Goby is a graceful and peaceful marine goby species, valued for its slender body shape, gentle behavior, and suitability for reef aquariums.

  • At a size of 5–6 cm, this goby is well-suited for nano reefs, medium marine tanks, and calm community setups.

  • It is a bottom-oriented fish that adds subtle movement and natural behavior to the lower levels of the aquarium.

  • This species is popular among aquarists who prefer elegant, low-aggression fish that blend harmoniously into reef environments.

• Appearance & Physical Characteristics

  • Slender, elongated body with smooth contours, giving it a refined and streamlined look.

  • Typically displays soft coloration such as beige, grey, pale brown, or translucent tones depending on lighting and substrate.

  • Long, delicate fins that enhance its graceful appearance, especially when resting or hovering near the substrate.

  • Eyes are positioned high on the head, allowing excellent awareness of surroundings.

  • Color intensity improves with stable water quality and low-stress conditions.

• Temperament & Behavior

  • Extremely peaceful and shy, making it ideal for calm marine aquariums.

  • Spends most of its time near the bottom, resting on sand or perching on live rock.

  • Non-territorial and does not harass other fish or invertebrates.

  • May hide during initial acclimation but becomes more visible once settled.

  • Best kept singly or as a compatible pair in larger tanks.

• Adult Size & Lifespan

  • Adult size: Approximately 5–6 cm

  • Suitable for smaller aquariums without risk of overcrowding.

  • Average lifespan ranges from 3 to 5 years with proper care.

  • Slow to moderate growth rate.

• Tank Size & Aquarium Setup

  • Minimum recommended tank size: 60–75 liters (15–20 gallons).

  • Ideal for reef tanks with live rock, caves, and shaded areas.

  • A fine sand substrate is strongly recommended to allow natural resting behavior.

  • Moderate lighting and gentle water flow are preferred.

  • Plenty of hiding spots help reduce stress and encourage natural activity.

• Water Conditions (Marine Requirements)

  • Temperature: 24–27 °C

  • Salinity: 1.023–1.025 specific gravity

  • pH: 8.1–8.4

  • Ammonia & Nitrite: 0 ppm

  • Nitrate: Below 20 ppm (lower is better)

  • Stable parameters are critical; sudden changes can cause stress.

  • Weekly water changes of 10–20% are recommended for long-term health.

• Feeding Habit & Diet

  • Carnivorous micro-feeder with a preference for small, meaty foods.

  • Readily accepts:

    • Frozen mysis shrimp

    • Frozen or live brine shrimp

    • Copepods and amphipods

    • Finely chopped marine seafood

    • High-quality sinking marine pellets

  • Feed 1–2 times daily in small portions.

  • Target feeding is recommended in community tanks to ensure adequate nutrition.

• Reef Compatibility

  • Fully reef-safe and suitable for coral tanks.

  • Will not nip or damage soft corals, LPS, SPS, or clams.

  • Safe with ornamental shrimp, snails, and other clean-up crew members.

  • Excellent choice for mixed reef systems.

• Tank Mates & Compatibility

  • Compatible with other peaceful marine species, including:

    • Clownfish

    • Firefish

    • Small blennies

    • Other non-aggressive gobies

    • Small wrasses with calm temperaments

  • Avoid housing with aggressive or predatory fish.

  • Large, fast, or territorial species may intimidate this goby and prevent proper feeding.

• Care Level & Maintenance

  • Care level: Easy to intermediate

  • Suitable for beginners with a properly cycled marine aquarium.

  • Requires gentle acclimation, preferably via drip acclimation.

  • Low-maintenance once established, provided water quality remains stable.

• Health & Special Care Notes

  • Generally hardy when kept in stable conditions.

  • Sensitive to poor water quality and sudden parameter changes.

  • Stress may result in hiding behavior or reduced feeding.

  • A secure tank lid is recommended, as gobies may jump when startled.

• Why Choose Longifilis Goby (5–6 cm)?

  • Peaceful and reef-safe nature

  • Elegant body shape and graceful movement

  • Ideal for nano and reef aquariums

  • Easy to care for with stable water conditions

  • Adds balance and natural behavior to the bottom of the tank

The Longifilis Goby Marine (5–6 cm) is an excellent choice for aquarists seeking a calm, refined, and reef-safe fish that thrives in peaceful marine environments. With proper feeding, stable water parameters, and compatible tank mates, this goby will remain healthy and add subtle beauty to any saltwater aquarium.