{"product_id":"spotted-blue-eye-rainbowfish-pseudomugil-gertrudae","title":"Spotted Blue-Eye Rainbowfish\n(Pseudomugil Gertrudae)","description":"\u003cp\u003e\u003cstrong\u003e*Note: Images are used as an example only. Due to the nature of live animals, colouration, size and patterns may vary.*\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpotted Blue-Eye Rainbowfish\u003cbr\u003e\u003c\/strong\u003eScientific Name: Pseudomugil gertrudae\u003cbr\u003e(Also known as the Gertrude’s Blue-Eye or Dwarf Spotted Rainbowfish.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverview\u003cbr\u003e\u003c\/strong\u003eThe Spotted Blue-Eye Rainbowfish is a delicate, beautifully patterned nano species known for its striking black body spots, translucent fins, and vivid blue eyes. These lively, fluttering swimmers add elegance and activity to planted aquariums. Although small and peaceful, they show their best colours and behaviour in well-planted, stable environments with gentle water flow and a supportive group structure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDistinct black spots across the body and fins\u003c\/li\u003e\n\u003cli\u003eBright blue irises that shimmer under aquarium lighting\u003c\/li\u003e\n\u003cli\u003eLively, fluttering swimming style unique to Pseudomugil species\u003c\/li\u003e\n\u003cli\u003ePeaceful nano fish ideal for planted aquariums\u003c\/li\u003e\n\u003cli\u003eDisplays natural courtship dances when kept in groups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCare Level: Easy to Moderate\u003cbr\u003e\u003c\/strong\u003eHardy when kept in stable, mature tanks; appreciates good water quality, gentle flow, and secure planting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHabitat Requirements\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eEnvironment Type:\u003c\/strong\u003e Freshwater\u003cbr\u003e\u003cstrong\u003eTank Size:\u003c\/strong\u003e Best results in 40+ litres; can be kept in 25 litres with excellent maintenance and a proper group size\u003cbr\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Ideally 24–28°C; tolerates 22–30°C\u003cbr\u003e\u003cstrong\u003eWater Parameters:\u003c\/strong\u003e pH 6.5–7.5 preferred; stable 6.0–8.0 acceptable\u003cbr\u003e\u003cstrong\u003eWater Hardness:\u003c\/strong\u003e Soft to moderately hard water\u003cbr\u003e\u003cstrong\u003eWater Flow:\u003c\/strong\u003e Gentle to moderate, avoiding strong currents\u003cbr\u003e\u003cstrong\u003eAquascape:\u003c\/strong\u003e Dense planting, floating plants, and shaded areas help them feel secure; open spaces are needed for group swimming and displays\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiet\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003ePrimary Diet:\u003c\/strong\u003e High-quality micro pellets, nano granules, or crushed flakes\u003cbr\u003e\u003cstrong\u003eVariety:\u003c\/strong\u003e Frozen or live foods such as baby brine shrimp, daphnia, cyclops, and micro-worms help maintain health and colour\u003cbr\u003e\u003cstrong\u003eFlexible Options:\u003c\/strong\u003e Will pick at small natural foods in mature aquariums\u003cbr\u003e\u003cstrong\u003eFeeding Frequency:\u003c\/strong\u003e Small meals 1–2 times per day\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eTank Mates:\u003c\/strong\u003e Peaceful nano fish such as rasboras, small tetras, pygmy Corydoras, and shrimp\u003cbr\u003e\u003cstrong\u003eAvoid:\u003c\/strong\u003e Large, fast, or aggressive species that may outcompete or intimidate them\u003cbr\u003e\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful but active; males display fluttering courtship dances\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize and Lifespan\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eAdult Size:\u003c\/strong\u003e 3–4 cm\u003cbr\u003e\u003cstrong\u003eTypical Lifespan:\u003c\/strong\u003e 3–5 years with consistent care\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBehaviour and Activity\u003cbr\u003e\u003c\/strong\u003eSpotted Blue-Eye Rainbowfish are lively shoaling fish with a distinctive, flickering swimming style. Males frequently perform small, rapid courtship displays, especially when kept in groups with plenty of space and cover. They are most confident and colourful in well-planted aquariums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecial Requirements or Considerations\u003cbr\u003e\u003c\/strong\u003eA mature aquarium with stable water quality brings out their best condition. Keeping them in groups of at least six is recommended to encourage natural displays and reduce stress. Covering the tank is advised, as they can be capable jumpers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlanted and heavily aquascaped aquariums\u003c\/li\u003e\n\u003cli\u003eNano and peaceful community setups\u003c\/li\u003e\n\u003cli\u003eAquarists seeking active, elegant schooling behaviour\u003c\/li\u003e\n\u003cli\u003eKeepers who appreciate subtle colours and natural displays\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Notes\u003cbr\u003e\u003c\/strong\u003eSpotted Blue-Eye Rainbowfish thrive when given stable, warm water, gentle flow, and a varied diet of suitably small foods. While adaptable within reason, optimal care enhances their colour, activity, and captivating display behaviours.\u003c\/p\u003e","brand":"3 Little Fish","offers":[{"title":"Default Title","offer_id":48427223974146,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8413\/3890\/files\/bubble-spotted-blue-eye.png?v=1787566428","url":"https:\/\/3little.fish\/products\/spotted-blue-eye-rainbowfish-pseudomugil-gertrudae","provider":"3 Little Fish","version":"1.0","type":"link"}