Description
Rainbow Goby – Stiphodon ornatus
Introduction:
The Rainbow Goby (Stiphodon ornatus) is a striking, peaceful goby known for its iridescent colors and unique appearance. Reaching a maximum size of 2 inches (5 cm), this goby is ideal for aquarists interested in a colorful species suited for peaceful community or biotope aquariums. With proper care, the Rainbow Goby can be a fascinating and lively addition to a well-maintained setup.
1. Natural Habitat and Behavior
Native to fast-flowing streams in Southeast Asia, the Rainbow Goby lives in clean, oxygen-rich rivers with sandy and rocky bottoms. In the wild, it’s commonly seen grazing on algae, and its colors are most vibrant when it’s in a group. Known for its calm and peaceful demeanor, this goby tends to be more active during the day, often seen scavenging around the tank.
2. Aquarium Setup
A 20-gallon long tank is ideal for a small group of Rainbow Gobies. Provide smooth rocks, driftwood, and a sandy or small-gravel substrate that allows them to sift through the sand and graze. The tank should have strong water flow and be well-oxygenated to simulate the fast-moving streams of their natural habitat. Maintain water parameters at a pH of 6.5-7.5 and a temperature range of 72-78°F (22-26°C), with moderate to bright lighting to promote algae growth.
3. Diet and Feeding
Rainbow Gobies are primarily herbivores that feed on algae and biofilm, but they will accept other foods. Offer a diet of algae wafers, spirulina-based foods, and blanched vegetables like zucchini or cucumber. Occasional treats of frozen or live foods like brine shrimp or daphnia can be provided but in moderation. Feed them twice a day, ensuring they have access to a constant source of algae.
4. Compatibility with Other Fish
This goby is peaceful and can be kept with similarly small, non-aggressive fish. Suitable tank mates include small tetras, rasboras, danios, and other small, peaceful fish. Avoid larger or aggressive species that may stress or outcompete the goby for food. Keeping them in groups of at least three or more will encourage natural behavior and help them feel secure.
5. Common Challenges and Tips
- Water Quality: Rainbow Gobies are sensitive to poor water quality, so regular water changes and a good filtration system are essential.
- Algae Growth: They rely on algae as a primary food source, so providing adequate lighting and surfaces where algae can grow will ensure they have a constant food source.
- Shyness: These gobies can be shy, especially when first introduced. Adding plenty of hiding spots and maintaining a calm environment will help them feel comfortable.
Conclusion
The Rainbow Goby (Stiphodon ornatus) is a stunning and unique addition to freshwater aquariums, especially for aquarists interested in algae-grazing species. Its vibrant coloration, peaceful nature, and manageable size make it an attractive choice for well-maintained tanks with suitable water flow and oxygenation. With the right conditions and care, this goby can thrive and bring a splash of color to any community aquarium.
