{"product_id":"true-julii-cory-corydoras-julii-freshwater","title":"True Julii Cory (Corydoras julii)","description":"\u003cdiv style=\"font-family:Georgia,serif;color:#1a1a1a;max-width:860px;line-height:1.7;\"\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\u003eTrue Julii Cory\u003c\/strong\u003e (\u003cem\u003eCorydoras julii\u003c\/em\u003e) is the genuine article behind a name the hobby hands out far too freely: a small, tidy, armored bottom dweller in pale silver, marked with fine separate black dots rather than the connected maze pattern of its common stand in. It is peaceful, endlessly busy, and an excellent community fish, provided you give it two things most tanks get wrong: a real group and a soft floor. Browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-water\"\u003efreshwater livestock and supplies\u003c\/a\u003e to build out the bottom crew.\u003c\/p\u003e\n\u003cdiv style=\"background:#FFF8E1;border-left:4px solid #F9A825;padding:10px 14px;margin:14px 0;font-size:0.95em;\"\u003e\n\u003cstrong\u003eTwo things decide whether this fish thrives.\u003c\/strong\u003e Corys sift food by pushing their faces into the substrate, so sharp gravel grinds their barbels down to stumps and opens the door to infection. They also shoal for a living, and a lone cory or a pair spends its life hiding. Plan on soft sand or smooth rounded gravel, and a group of six or more, before you take one home.\n\u003c\/div\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;\"\u003eHow To Spot A True Julii\u003c\/h3\u003e\n\u003cp\u003eThis is the real \u003cem\u003eCorydoras julii\u003c\/em\u003e, a coastal eastern Brazilian species that is genuinely uncommon in the aquarium trade. The fish sold under the Julii name in almost every United States store is actually \u003cem\u003eCorydoras trilineatus\u003c\/em\u003e, the False Julii or Three Line Cory, which we stock and label as exactly that on its \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/false-julii-cory-corydoras-trilineatus-freshwater\"\u003eown listing\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe difference lives in the head pattern. A true \u003cem\u003eC. julii\u003c\/em\u003e wears small, round, clearly separated dots, each one distinct, with no lines joining them up. The False Julii wears connected squiggles that run together into a maze or fingerprint, plus a heavier unbroken stripe down the midline. True julii also tends to run a little smaller and cleaner looking overall. Care requirements are identical, so this is a collector's distinction rather than a husbandry one, and it is worth knowing which one you actually own.\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 20 gallon long or larger. These fish work the floor, so length and footprint matter far more than height. A 20 long beats a 29 tall for the same group.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate is the whole ballgame:\u003c\/strong\u003e soft sand such as \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/estes-natural-aquatic-sand\"\u003eEstes Natural Aquatic Sand\u003c\/a\u003e or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/estes-crystal-lake-sand\"\u003eEstes Crystal Lake Sand\u003c\/a\u003e lets them do what they are built to do. Sharp or coarse gravel wears the barbels away, and barbel damage is the single most common reason a cory fails in a home tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroup size:\u003c\/strong\u003e six is the floor, eight to ten is the honest recommendation. In a real group they forage in the open, pile up together to rest, and occasionally sprint across the tank in formation for no reason at all. In a pair they hide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater parameters:\u003c\/strong\u003e 73 to 79°F, pH 6.0 to 7.5. A cooler running cory than a Sterbai, so it is a poor match for a tank held in the low 80s for discus or German rams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding:\u003c\/strong\u003e omnivore, and emphatically not a cleanup crew. They will not live on what other fish drop. Feed them directly with sinking food after the lights dim: \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-sinking-wafers\"\u003eHikari Sinking Wafers\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/repashy-bottom-scratcher\"\u003eRepashy Bottom Scratcher\u003c\/a\u003e gel, or frozen \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sfbb-bloodworms-cube-1-75oz\"\u003ebloodworms\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e the locking pectoral and dorsal spines tangle in mesh nets instantly, which stresses the fish and can prick you. Guide them into a cup or bag underwater instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedication sensitivity:\u003c\/strong\u003e scaleless and thin skinned. Go easy on copper based treatments and full dose aquarium salt, and ask us before you dose a tank that contains corys.\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\u003eCorydoras julii\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;\"\u003eTrue Julii Cory, Julii Cory, Leopard Cory, Spotted Cory\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 2 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;\"\u003e20 gallons (long footprint)\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;\"\u003e73 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;\"\u003e6.0 to 7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eSubstrate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eSoft sand or smooth rounded gravel, never sharp\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, sinking wafers, gel, and 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;\"\u003e5 to 10 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;\"\u003eCoastal river drainages of eastern Brazil, including the Parnaiba and Poti\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\u003eThis is one of the easiest community fish there is. It ignores everything above it and asks only for floor space and calm neighbors. Pair it with small schooling fish like \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, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/ember-tetra-hyphessobrycon-amandae-freshwater\"\u003eEmber Tetras\u003c\/a\u003e, or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/brilliant-rummy-nose-tetra-hemigrammus-bleheri-freshwater\"\u003eRummy Nose Tetras\u003c\/a\u003e, with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/otocinclus-catfish-otocinclus-vittatus-freshwater-algae-eater\"\u003eOtocinclus\u003c\/a\u003e working the glass. Other corys such as the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/panda-cory-corydoras-panda-freshwater\"\u003ePanda\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/skunk-cory-corydoras-arcuatus-freshwater\"\u003eSkunk\u003c\/a\u003e, or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sterbai-cory-corydoras-sterbai-freshwater\"\u003eSterbai\u003c\/a\u003e make good company, though corys shoal most tightly with their own species, so a full group of one kind beats one each of six kinds.\u003c\/p\u003e\n\u003cp\u003eWhat goes wrong: anything big enough to swallow a two inch fish, including adult angelfish and most medium to large cichlids. Persistent fin nippers such as tiger barbs and serpae tetras will harass them at rest. Aggressive bottom feeders like larger loaches and territorial plecos will outcompete them at dinner. They are safe with adult shrimp but will happily eat shrimplets, so do not count on a cory tank to grow a shrimp colony. Finally, avoid tanks run hot for discus, and avoid sharp gravel no matter how good it looks.\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\/estes-natural-aquatic-sand\"\u003eEstes Natural Aquatic Sand\u003c\/a\u003e the barbel safe floor they need\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hikari-sinking-wafers\"\u003eHikari Sinking Wafers\u003c\/a\u003e everyday staple that reaches the bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/repashy-bottom-scratcher\"\u003eRepashy Bottom Scratcher\u003c\/a\u003e invertivore gel they go silly for\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/sfbb-bloodworms-cube-1-75oz\"\u003eSFBB Frozen Bloodworms\u003c\/a\u003e twice weekly conditioning treat\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 shade and cover over open sand\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-catappa-leaves-10pk\"\u003eFritz Catappa Leaves\u003c\/a\u003e tannins and a grazing surface\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\u003eHow is this different from the Julii Cory on your other listing?\u003c\/strong\u003e\u003cbr\u003eThat one is \u003cem\u003eCorydoras trilineatus\u003c\/em\u003e, the False Julii, which is what nearly every store sells under the Julii name. This one is the actual \u003cem\u003eCorydoras julii\u003c\/em\u003e. Look at the head: separate dots here, connected maze lines there. Husbandry is identical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it worth paying more for the true species?\u003c\/strong\u003e\u003cbr\u003eOnly if the correct ID matters to you. They behave the same, live the same length of time, and want the same tank. Plenty of keepers are perfectly happy with the False Julii, and we would rather you buy the one you actually want.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many should I actually buy?\u003c\/strong\u003e\u003cbr\u003eSix minimum, and eight to ten if the tank allows. This is not upselling, it is the difference between a fish that forages in the open all day and a fish that lives under the driftwood. Groups of three or fewer are visibly stressed and far less interesting to watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I keep them on my existing gravel?\u003c\/strong\u003e\u003cbr\u003eIf it is smooth and rounded, yes. If it is the sharp crushed stuff, please plan on switching. Eroded barbels do not always grow back, and a cory that cannot feel its food stops feeding well.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMine keeps dashing to the surface. Is something wrong?\u003c\/strong\u003e\u003cbr\u003eUsually no. Corys gulp air and absorb oxygen through their gut, so an occasional sprint up and back is completely normal behavior. Constant surface gulping by the whole group is different and points to poor water quality or low oxygen, so test the tank in that case.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they clean my tank?\u003c\/strong\u003e\u003cbr\u003eNo, and this myth kills a lot of corys. They eat leftovers only incidentally and starve slowly if that is all they get. Feed them a sinking food of their own every day.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":49142769090779,"sku":"FW1-F7150","price":10.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/13baf289-6359-4506-8a4d-3582e0adf24a.png?v=1786787131","url":"https:\/\/squeakysaquatics.com\/products\/true-julii-cory-corydoras-julii-freshwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}