{"product_id":"blueberry-tetra-hyphessobrycon-wadai-freshwater","title":"Blueberry Tetra (Hyphessobrycon wadai)","description":"\u003cdiv style=\"font-family:Georgia,serif;color:#1a1a1a;max-width:860px;line-height:1.7;\"\u003e\n\u003cdiv style=\"background:#ECEFF1;border-left:4px solid #37474F;padding:10px 14px;margin:0 0 14px;font-size:0.95em;\"\u003e\n\u003cstrong\u003eComing soon.\u003c\/strong\u003e These are on their way to the store. The listing is live so you can read up now, and they will be available to order once they arrive.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E3F2FD;border-left:4px solid #1E88E5;padding:10px 14px;margin:0 0 14px;font-size:0.95em;\"\u003e\n\u003cstrong\u003eIn-store pickup only.\u003c\/strong\u003e Your order is reserved, we hold off on bagging until you arrive so it stays healthy in its display tank.\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eBlueberry Tetra\u003c\/strong\u003e (\u003cem\u003eHyphessobrycon wadai\u003c\/em\u003e) is one of the newest characins in the hobby, formally described only in 2016. It is a small, glassy, blue to violet fish with a warm red flush behind the gill and a bright iridescent line down the flank that lights up under good light and against a dark substrate. Peaceful, beginner friendly, and genuinely uncommon on shop shelves. Browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003efreshwater livestock and supplies\u003c\/a\u003e while you plan the tank.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eWhy Tank Raised Matters Here\u003c\/h3\u003e\n\u003cp\u003eIn the wild this fish comes from soft, acidic, tannin stained streams in the upper Tapajos basin, the kind of water that reads near zero on a hardness test. Wild caught soft water characins routinely struggle in ordinary tap water, and plenty of hobbyists have lost a bag of them for exactly that reason.\u003c\/p\u003e\n\u003cp\u003eOurs are \u003cstrong\u003etank raised\u003c\/strong\u003e, which changes the math. Captive bred generations have been grown in normal aquarium water, so they are far more forgiving of moderate hardness and a neutral pH than their wild parents would be. You still get the best color and the best breeding behavior in soft, slightly acidic water, but you are no longer required to run an RO unit just to keep them alive. If you already keep Neons or Embers successfully, you can keep these.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eCare Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank size:\u003c\/strong\u003e 15 gallons is the practical minimum, and a 20 long is better. These are strong little swimmers that use horizontal space, so footprint beats height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroup size:\u003c\/strong\u003e six is the floor, eight to ten is where they actually behave like themselves. In a proper group they hold a loose shoal in open water and color up hard. In a group of two or three they hide in the plants and stay washed out, which is how most people conclude the fish is dull.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater parameters:\u003c\/strong\u003e 68 to 79°F, pH 5.5 to 7.0, and soft water at 1 to 6 GH if you can manage it. Tank raised stock tolerates harder and more neutral water, but color deepens noticeably as you move toward the soft acidic end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlackwater suits them:\u003c\/strong\u003e a dark substrate, some \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/malaysian-driftwood-freshwater-aquascaping-hardwood\"\u003edriftwood\u003c\/a\u003e, and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-catappa-leaves-10pk\"\u003ecatappa leaves\u003c\/a\u003e for tannins will do more for their appearance than any light upgrade. Against pale gravel they look like clear glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding:\u003c\/strong\u003e omnivore with a genuinely tiny mouth, so particle size is the whole game. \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/xtreme-nano-slow-sinking-pellets-nano-fish-food\"\u003eXtreme Nano Slow-Sinking Pellets\u003c\/a\u003e or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-micro-pellets\"\u003eHikari Micro Pellets\u003c\/a\u003e as the staple, with frozen \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sfbb-baby-brine-shrimp-cube-1-75oz\"\u003ebaby brine shrimp\u003c\/a\u003e or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sfbb-cyclops-cube-3-5oz\"\u003ecyclops\u003c\/a\u003e a couple of times a week. Standard flake is often too large for them to swallow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow and cover:\u003c\/strong\u003e they come from streams with steady current, so gentle to moderate flow is welcome. Give them planted edges to retreat into and open midwater to cruise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSexing:\u003c\/strong\u003e males are slimmer and more intensely colored, females noticeably rounder and plainer. Worth buying a group if you want a shot at both.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:640px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eScientific name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cem\u003eHyphessobrycon wadai\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCommon names\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eBlueberry Tetra, Wadai Tetra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCare level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eBeginner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperament\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003ePeaceful\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eAdult size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eAbout 1 to 1.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eMinimum group\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e6, with 8 to 10 preferred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eMinimum tank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e15 gallons, 20 long preferred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e68 to 79°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e5.5 to 7.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eHardness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e1 to 6 GH, soft water preferred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eDiet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eOmnivore, micro pellets and small frozen foods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eLifespan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eUp to 5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eRio do Sangue, upper Rio Tapajos basin, Mato Grosso, Brazil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eSourcing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eTank raised\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eWater type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003ePickup\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eIn-store pickup at Squeaky's Aquatics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eStart with the hard part: this is a one inch fish, and one inch fish are food. Anything with a mouth big enough will eventually take one, which rules out angelfish, most cichlids past dwarf size, larger gouramis, and any grown out community fish you are hoping to \"just try.\" It also rules out fin nippers such as tiger barbs and serpae tetras, which will shred a shoal this delicate. Judge every tankmate by mouth width, not by reputation.\u003c\/p\u003e\n\u003cp\u003eWhat does work is a nano community of equals. Pair them with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/ember-tetra-hyphessobrycon-amandae-freshwater\"\u003eEmber Tetras\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/neon-tetra-paracheirodon-innesi-freshwater\"\u003eNeon Tetras\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/cardinal-tetra-paracheirodon-axelrodi-freshwater\"\u003eCardinal Tetras\u003c\/a\u003e, or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/micro-tiger-rasbora-danio-erythromicron-freshwater\"\u003eMicro Tiger Rasbora\u003c\/a\u003e, with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/pygmy-cory-corydoras-pygmaeus-freshwater\"\u003ePygmy Corys\u003c\/a\u003e or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/panda-cory-corydoras-panda-freshwater\"\u003ePanda Corys\u003c\/a\u003e on the floor and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/otocinclus-catfish-otocinclus-vittatus-freshwater-algae-eater\"\u003eOtocinclus\u003c\/a\u003e on the glass. Adult \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/rili-red-shrimp-neocaridina-davidi-freshwater\"\u003eNeocaridina shrimp\u003c\/a\u003e are safe company, though a mouth this size will still pick off newborn shrimplets, so expect a slower colony than in a fish free tank.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eRecommended Foods \u0026amp; Supplies\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/xtreme-nano-slow-sinking-pellets-nano-fish-food\"\u003eXtreme Nano Slow-Sinking Pellets\u003c\/a\u003e sized for a mouth this small\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-micro-pellets\"\u003eHikari Micro Pellets\u003c\/a\u003e alternate staple\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sfbb-baby-brine-shrimp-cube-1-75oz\"\u003eSFBB Baby Brine Shrimp\u003c\/a\u003e conditioning food that triggers real color\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-catappa-leaves-10pk\"\u003eFritz Catappa Leaves\u003c\/a\u003e tannins, softer water, better color\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/estes-natural-aquatic-sand\"\u003eEstes Natural Aquatic Sand\u003c\/a\u003e a dark floor makes them glow\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/anubias-nana-anubias-barteri-nana-potted-freshwater-plant\"\u003eAnubias Nana\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/dwarf-sagittaria-sagittaria-subulata-potted\"\u003eDwarf Sagittaria\u003c\/a\u003e planted cover to retreat into\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhen will these be in?\u003c\/strong\u003e\u003cbr\u003eThey are on order and this page will switch over to buyable the moment they clear our quarantine. Everything here is accurate now, so you can plan the tank ahead of time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need RO water for them?\u003c\/strong\u003e\u003cbr\u003eNo. Wild \u003cem\u003eHyphessobrycon wadai\u003c\/em\u003e would want very soft water, but these are tank raised and adapt fine to ordinary aquarium water. Soft and slightly acidic simply gives you better color, so treat it as an upgrade rather than a requirement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do they look pale in the bag?\u003c\/strong\u003e\u003cbr\u003eBecause they are stressed, transported, and sitting against a bright background. This species shows its blue over a dark substrate in a settled tank, so give a new group two weeks before you judge them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many should I buy?\u003c\/strong\u003e\u003cbr\u003eSix minimum, eight to ten if the tank allows. A bigger group is the single biggest difference between a shy, colorless fish and the one you saw in the photo.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a dyed or painted fish?\u003c\/strong\u003e\u003cbr\u003eNo. Some fruit named fish in the trade are artificially dyed, which is worth being suspicious of. This is not one of them. \u003cem\u003eHyphessobrycon wadai\u003c\/em\u003e is a real species with natural blue to violet coloring, described by scientists in 2016, and ours are captive bred.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre they safe with my shrimp?\u003c\/strong\u003e\u003cbr\u003eAdult shrimp, yes. Newborn shrimplets are small enough to be eaten. A heavily planted tank with moss will still let a colony grow, just more slowly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":49154112815323,"sku":"FW1-F8703","price":10.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/2026-08-1805.24.57.jpg?v=1787045113","url":"https:\/\/squeakysaquatics.com\/products\/blueberry-tetra-hyphessobrycon-wadai-freshwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}