Neon Blue Eye (Pseudomugil cyanodorsalis) – A Stunning Nano Aquarium FishThe Neon Blue Eye (Pseudomugil cyanodorsalis) is a small, brightly colored fish with a glowing blue stripe on its back and striking yellow fins. Found in the coastal waters of northern Australia and New Guinea, this fish does well in both freshwater and slightly salty environments. Because of its peaceful nature and eye-catching colors, the Neon Blue Eye is a fantastic choice for small and community aquariums.Size and LifespanThe Neon Blue Eye (Pseudomugil cyanodorsalis) stays small, growing to about 3–4 cm. Even though they are tiny, they can live for around 2–3 years with the right care. To help them live longer, it’s important to keep their water clean and give them a well-balanced diet.Ideal Tank SetupA 40-litre tank is the minimum recommended size for the Neon Blue Eye (Pseudomugil cyanodorsalis). Since they naturally live in estuaries, they prefer slightly salty water (a specific gravity of 1.005–1.010), but they can also adapt to freshwater. Here are the key water conditions they need:Temperature: 24–28°CpH: 7.0–8.5Hardness: Moderate to hard (10–20 dGH)To make them feel at home, use fine sand, driftwood, and floating plants. These decorations provide hiding places and also encourage breeding.Compatible Tank MatesThe Neon Blue Eye (Pseudomugil cyanodorsalis) is a peaceful fish that enjoys being in a group. To keep them happy, it’s best to keep at least six together. Good tank mates include:Other small rainbowfishPeaceful tetrasEndlers and guppiesSmall gobies and killifishHowever, it’s best to avoid aggressive or much larger fish, as they could stress out or even eat the Neon Blue Eye.Feeding and NutritionThis fish eats a mix of tiny foods. To keep them healthy, feed them:High-quality micro pellets or flakesLive or frozen foods like daphnia, brine shrimp, and micro wormsOccasionally, plant-based foods to help with digestionSince they have small stomachs, they should be fed in small amounts several times a day.Breeding and BehaviorBreeding the Neon Blue Eye (Pseudomugil cyanodorsalis) is fairly easy when they have the right setup. Males show off their bright colors and perform a courtship dance to attract females. They lay sticky eggs on plants or spawning mops, and these eggs hatch in about 10 days. The tiny fry can be fed special fry food or infusoria before moving on to baby brine shrimp.Species OverviewCommon Name: Neon Blue EyeScientific Name: Pseudomugil cyanodorsalisOrigin: Northern Australia, New GuineaDiet: OmnivoreTemperament: PeacefulTemperature: 24–28°CpH Range: 7.0–8.5Maximum Size: 3–4 cmMinimum Tank Size: 40 litresFAQs1. Do Neon Blue Eyes need brackish water? They can live in freshwater, but they are healthiest in slightly salty water (specific gravity 1.005–1.010).2. How many should I keep together? At least six should be kept together so they feel comfortable and display their natural behaviors.3. Can they be kept with shrimp? Yes, they usually do well with shrimp. However, they may eat very tiny baby shrimp.4. Are they easy to breed? Yes! With the right setup, they will lay eggs on plants or spawning mops. Separating the eggs helps protect them from being eaten.5. What should they eat? A mix of micro pellets, live or frozen foods, and some vegetable-based foods will keep them healthy.Add a Neon Blue Eye (Pseudomugil cyanodorsalis) to Your Aquarium Today!The Neon Blue Eye (Pseudomugil cyanodorsalis) is a colorful and peaceful fish that brings life to any small or community aquarium. Don’t miss out—order yours today!
