{"product_id":"spotted-blue-eye-rainbowfish-pseudomugil-gertrudae-aru-iv","title":"Spotted Blue-Eye Rainbowfish - Pseudomugil gertrudae \"Aru IV\"","description":"\u003ch1 data-section-id=\"1vcm6nl\" data-start=\"0\" data-end=\"65\"\u003e\u003cspan role=\"text\"\u003eSpotted Blue-Eye Rainbowfish – \u003cem data-start=\"33\" data-end=\"56\"\u003ePseudomugil gertrudae\u003c\/em\u003e “Aru IV”\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2 data-section-id=\"77mjg\" data-start=\"67\" data-end=\"79\"\u003eOverview:\u003c\/h2\u003e\n\u003cp data-start=\"80\" data-end=\"585\"\u003eThe \u003cstrong data-start=\"84\" data-end=\"125\"\u003eSpotted Blue-Eye Rainbowfish “Aru IV”\u003c\/strong\u003e is a small, delicate and beautifully patterned blue-eye rainbowfish with bright blue eyes, spotted fins and lively display behaviour. This locality form of \u003cstrong data-start=\"282\" data-end=\"307\"\u003ePseudomugil gertrudae\u003c\/strong\u003e is ideal for peaceful planted aquariums, nano-style species setups and carefully chosen small community tanks. It is not a boisterous fish, but in a mature aquarium with a good-sized group, fine foods and gentle filtration, males show superb fin displays and shimmering colour.\u003c\/p\u003e\n\u003ch2 data-section-id=\"18rclky\" data-start=\"587\" data-end=\"609\"\u003eKey Identification:\u003c\/h2\u003e\n\u003cp data-start=\"610\" data-end=\"906\"\u003e\u003cstrong data-start=\"610\" data-end=\"626\"\u003eCommon Name:\u003c\/strong\u003e Spotted Blue-Eye Rainbowfish\u003cbr data-start=\"655\" data-end=\"658\"\u003e\u003cstrong data-start=\"658\" data-end=\"674\"\u003eOther Names:\u003c\/strong\u003e Gertrude’s Blue-Eye, Spotted Blue Eye, Aru IV Blue-Eye, Delicate Blue-Eye, Northern Blue-Eye\u003cbr data-start=\"767\" data-end=\"770\"\u003e\u003cstrong data-start=\"770\" data-end=\"790\"\u003eScientific Name:\u003c\/strong\u003e \u003cem data-start=\"791\" data-end=\"814\"\u003ePseudomugil gertrudae\u003c\/em\u003e “Aru IV”\u003cbr data-start=\"823\" data-end=\"826\"\u003e\u003cstrong data-start=\"826\" data-end=\"840\"\u003eFish Type:\u003c\/strong\u003e Blue-eye Rainbowfish \/ Pseudomugil\u003cbr data-start=\"875\" data-end=\"878\"\u003e\u003cstrong data-start=\"878\" data-end=\"893\"\u003eWater Type:\u003c\/strong\u003e Freshwater\u003c\/p\u003e\n\u003ch2 data-section-id=\"13oemwk\" data-start=\"908\" data-end=\"935\"\u003eNatural Range \u0026amp; Habitat:\u003c\/h2\u003e\n\u003cp data-start=\"936\" data-end=\"1297\"\u003eThe wider species, \u003cem data-start=\"955\" data-end=\"978\"\u003ePseudomugil gertrudae\u003c\/em\u003e, is native to northern Australia, southern New Guinea and the Aru Islands. FishBase describes it from small creeks, swampy marshes, shaded rainforest streams, lily lagoons and backwaters, often among dense vegetation, submerged log debris and muddy-bottomed Pandanus-lined creeks. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1299\" data-end=\"1615\"\u003eThe \u003cstrong data-start=\"1303\" data-end=\"1313\"\u003eAru IV\u003c\/strong\u003e form is a locality strain from the Aru Islands region of Indonesia. The original species was described from Trangan Island in the Aru Islands, and locality forms from this region are especially valued by blue-eye enthusiasts for their pattern and display quality. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1k4fj4a\" data-start=\"1617\" data-end=\"1644\"\u003eAppearance \u0026amp; Adult Size:\u003c\/h2\u003e\n\u003cp data-start=\"1645\" data-end=\"2047\"\u003eSpotted Blue-Eyes are small, slim fish with translucent to pale golden bodies, bright reflective blue eyes and ornate fins marked with black spotting or edging. Males are more colourful and develop larger, more decorative dorsal, anal and pelvic fins, which they flare during courtship and rivalry displays. Females are smaller-finned and more understated, but they are essential for natural behaviour.\u003c\/p\u003e\n\u003cp data-start=\"2049\" data-end=\"2323\"\u003eAdults usually reach around \u003cstrong data-start=\"2077\" data-end=\"2087\"\u003e3–4 cm\u003c\/strong\u003e, with Aru forms often appearing a little larger and more robust than some other localities. Trade listings for \u003cem data-start=\"2199\" data-end=\"2222\"\u003ePseudomugil gertrudae\u003c\/em\u003e “Aru IV” commonly give an adult size of up to around \u003cstrong data-start=\"2276\" data-end=\"2284\"\u003e4 cm\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"zee6g1\" data-start=\"2325\" data-end=\"2349\"\u003eAquarium Suitability:\u003c\/h2\u003e\n\u003cp data-start=\"2350\" data-end=\"2682\"\u003eThis is a lovely fish for a mature planted aquarium with calm tank mates. It suits fine-leaved plants, mosses, floating plants, botanicals, gentle flow and open swimming areas near the front and middle of the tank. Because of its small size and delicate fins, it should not be kept with large, aggressive or very boisterous species.\u003c\/p\u003e\n\u003cp data-start=\"2684\" data-end=\"2953\"\u003eA species aquarium or a peaceful planted community is ideal. It is also a good choice for aquarists interested in breeding small rainbowfish, as it is an adhesive egg-layer that may spawn among mosses, fine plants or spawning mops. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1jzuw08\" data-start=\"2955\" data-end=\"2984\"\u003eRecommended Aquarium Size:\u003c\/h2\u003e\n\u003cp data-start=\"2985\" data-end=\"3225\"\u003eA practical minimum is \u003cstrong data-start=\"3008\" data-end=\"3042\"\u003e45–60 litres for a small group\u003c\/strong\u003e, with \u003cstrong data-start=\"3049\" data-end=\"3070\"\u003e70 litres or more\u003c\/strong\u003e preferred for a stronger shoal and better male display behaviour. A larger footprint gives more room for males to display and reduces pressure on females.\u003c\/p\u003e\n\u003ch2 data-section-id=\"pl4gsq\" data-start=\"3227\" data-end=\"3247\"\u003eWater Conditions:\u003c\/h2\u003e\n\u003cp data-start=\"3248\" data-end=\"3764\"\u003e\u003cstrong data-start=\"3248\" data-end=\"3264\"\u003eTemperature:\u003c\/strong\u003e 23–28°C\u003cbr data-start=\"3272\" data-end=\"3275\"\u003e\u003cstrong data-start=\"3275\" data-end=\"3282\"\u003epH:\u003c\/strong\u003e 6.0–7.5\u003cbr data-start=\"3290\" data-end=\"3293\"\u003e\u003cstrong data-start=\"3293\" data-end=\"3306\"\u003eHardness:\u003c\/strong\u003e Soft to moderately hard; adaptable if stable\u003cbr data-start=\"3351\" data-end=\"3354\"\u003e\u003cstrong data-start=\"3354\" data-end=\"3375\"\u003eAdditional Notes:\u003c\/strong\u003e Provide clean, stable water and avoid immature aquariums. FishBase records wild \u003cem data-start=\"3456\" data-end=\"3470\"\u003eP. gertrudae\u003c\/em\u003e from waters around \u003cstrong data-start=\"3490\" data-end=\"3501\"\u003e23–30°C\u003c\/strong\u003e and pH \u003cstrong data-start=\"3509\" data-end=\"3520\"\u003e5.2–6.7\u003c\/strong\u003e, while aquarium-bred Aru IV stock is often kept successfully across a broader pH range if changes are gradual. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e Gentle filtration is best; avoid strong currents that constantly push these small fish around.\u003c\/p\u003e\n\u003ch2 data-section-id=\"3rlnm7\" data-start=\"3766\" data-end=\"3794\"\u003eTemperament \u0026amp; Tank Mates:\u003c\/h2\u003e\n\u003cp data-start=\"3795\" data-end=\"3834\"\u003e\u003cstrong data-start=\"3795\" data-end=\"3817\"\u003eAquarium Category:\u003c\/strong\u003e Community Fish\u003c\/p\u003e\n\u003cp data-start=\"3836\" data-end=\"4137\"\u003eSpotted Blue-Eye Rainbowfish are peaceful, social and best kept with other small, gentle fish. Suitable tank mates include small rasboras, Ember Tetras, small pencilfish, peaceful microdevario-type fish, Otocinclus, small Cory-type catfish suited to the same water, and small shrimp only with caution.\u003c\/p\u003e\n\u003cp data-start=\"4139\" data-end=\"4550\"\u003eAvoid angelfish, larger tetras, barbs, aggressive dwarf cichlids, fin-nippers, large gouramis and fast-feeding species that may outcompete them. Adult shrimp are usually safe, but tiny shrimplets may be eaten. Keep in a group of \u003cstrong data-start=\"4368\" data-end=\"4382\"\u003eat least 8\u003c\/strong\u003e, with \u003cstrong data-start=\"4389\" data-end=\"4403\"\u003e10 or more\u003c\/strong\u003e strongly preferred. A mixed-sex group gives the best displays, but keep enough females so males are not constantly harassing just one or two fish.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ah6yd9\" data-start=\"4552\" data-end=\"4563\"\u003eFeeding:\u003c\/h2\u003e\n\u003cp data-start=\"4564\" data-end=\"4942\"\u003eThis species needs small foods. Offer quality micro pellets, finely crushed flakes and powdered or granulated foods as the staple. Supplement regularly with frozen or live daphnia, cyclops, baby brineshrimp, microworms, small mosquito larvae and finely chopped bloodworm. Fine live or frozen foods are especially useful for conditioning males and encouraging spawning behaviour.\u003c\/p\u003e\n\u003cp data-start=\"4944\" data-end=\"5087\"\u003eBecause they are small and feed near the upper and middle levels, make sure food is fine enough and not taken immediately by larger tank mates.\u003c\/p\u003e\n\u003ch2 data-section-id=\"2vr35r\" data-start=\"5089\" data-end=\"5118\"\u003eBehaviour in the Aquarium:\u003c\/h2\u003e\n\u003cp data-start=\"5119\" data-end=\"5509\"\u003eMales are active display fish, flaring their fins, circling females and sparring with rival males without usually causing damage. They spend much of their time in the upper and middle levels, weaving among plants and open spaces. In a settled group, males display frequently, especially in the morning or after small water changes. They may jump if startled, so a secure lid is recommended.\u003c\/p\u003e\n\u003ch2 data-section-id=\"gyou4p\" data-start=\"5511\" data-end=\"5525\"\u003eCare Notes:\u003c\/h2\u003e\n\u003cp data-start=\"5526\" data-end=\"6158\"\u003eAdd only to a mature, stable aquarium with low nitrate and gentle filtration. Avoid rough handling, aggressive tank mates and sudden water changes. Floating plants, mosses and fine-leaved plants make the fish feel secure and provide useful spawning sites. This species can be relatively short-lived compared with many larger aquarium fish, so maintaining a healthy group and allowing natural spawning can help keep the line going in established aquariums. Seriously Fish notes that \u003cem data-start=\"6008\" data-end=\"6022\"\u003eP. gertrudae\u003c\/em\u003e should not be added to biologically immature tanks and is best maintained in well-planted setups. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"iot6fl\" data-start=\"6160\" data-end=\"6179\"\u003eRecommended For:\u003c\/h2\u003e\n\u003cp data-start=\"6180\" data-end=\"6204\"\u003eBeginner to intermediate\u003c\/p\u003e\n\u003ch2 data-section-id=\"1c7763y\" data-start=\"6206\" data-end=\"6222\"\u003eAvailability:\u003c\/h2\u003e\n\u003cp data-start=\"6223\" data-end=\"6283\"\u003eOccasional \/ Specialist locality strain \/ Often captive-bred\u003c\/p\u003e\n\u003ch2 data-section-id=\"1x39ni3\" data-start=\"6285\" data-end=\"6305\"\u003eImage Disclaimer:\u003c\/h2\u003e\n\u003cp data-start=\"6306\" data-end=\"6501\"\u003eAll images are a visual representation of the fish you will receive, made to be as accurate as possible. Natural variation in size, colour, pattern and markings can occur between individual fish.\u003c\/p\u003e","brand":"Warehouse Aquatics","offers":[{"title":"Small","offer_id":43674951221322,"sku":"AG-102718","price":4.95,"currency_code":"GBP","in_stock":false},{"title":"Medium","offer_id":43674951254090,"sku":"AG-102719","price":6.95,"currency_code":"GBP","in_stock":false},{"title":"Large","offer_id":43674951286858,"sku":"AG-102720","price":7.95,"currency_code":"GBP","in_stock":false},{"title":"X-Large","offer_id":43674951319626,"sku":"AG-102721","price":9.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1877\/2298\/files\/SpottedBlue-EyeRainbowfish-PseudomugilgertrudaeAruIV_2.jpg?v=1780753812","url":"https:\/\/warehouse-aquatics.co.uk\/products\/spotted-blue-eye-rainbowfish-pseudomugil-gertrudae-aru-iv","provider":"Warehouse Aquatics","version":"1.0","type":"link"}