{"product_id":"frozen-krill-pacifica-flat-454g","title":"Frozen Krill Pacifica Flat 454g","description":"\u003cp\u003e\u003cstrong\u003eWhole krill, one ingredient, in a 454 g slab you break up as you go.\u003c\/strong\u003e Ocean Nutrition Frozen Krill Pacifica is whole \u003cem\u003eEuphausia pacifica\u003c\/em\u003e — a cold-water Pacific krill of roughly 2.5 cm — flash frozen with nothing added. The declaration is a single item, and the analysis runs 12.2% protein as fed. The flat pack is the bulk format: a 454 g sheet you snap portions from, rather than pre-portioned cubes.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne ingredient\u003c\/strong\u003e — krill pacifica and nothing else. No binder, no gelatin, no added colour, no premix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole animals of around 2.5 cm\u003c\/strong\u003e — this is the single most important number on the page, because it decides which of your fish can actually eat it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.2% crude protein as fed\u003c\/strong\u003e — close to 76% on a dry-matter basis at 84.0% moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e454 g flat pack\u003c\/strong\u003e — roughly four and a half times a 100 g blister, for tanks where a blister lasts a week or less.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTakes large, greedy feeders\u003c\/strong\u003e — the size that suits triggers, large wrasses, lionfish and big cichlids is exactly the size that defeats small-mouthed fish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrustaceans feed on it readily\u003c\/strong\u003e — Ocean Nutrition lists crustaceans alongside marine and freshwater fish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural carotenoid content\u003c\/strong\u003e — krill is a recognised pigment source. Ocean Nutrition does not publish a figure for it, so none is claimed here.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eReproduced verbatim from Ocean Nutrition's published composition. Checked 7 August 2026.\u003c\/p\u003e\n\u003cp\u003eKrill pacifica\u003c\/p\u003e\n\u003ch4\u003eAllergen, additive and source notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eContains crustacean. That is the entire declaration — there are no other animal or plant sources in this product.\u003c\/li\u003e\n\u003cli\u003eNo preservatives, antioxidants, colours or vitamin premix are declared.\u003c\/li\u003e\n\u003cli\u003eSpecies: \u003cem\u003eEuphausia pacifica\u003c\/em\u003e, harvested from cold Pacific waters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGuaranteed analysis\u003c\/h3\u003e\n\u003cp\u003eFigures are as fed, on the frozen product, as published by Ocean Nutrition.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCrude protein\u003c\/th\u003e\n\u003ctd\u003e12.2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCrude fat\u003c\/th\u003e\n\u003ctd\u003e1.4%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAsh\u003c\/th\u003e\n\u003ctd\u003e2.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMoisture\u003c\/th\u003e\n\u003ctd\u003e84.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCrude fibre\u003c\/th\u003e\n\u003ctd\u003eNot published by the manufacturer for this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003ctd\u003eWhole frozen krill in a flat pack slab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet weight\u003c\/th\u003e\n\u003ctd\u003e454 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnimal size\u003c\/th\u003e\n\u003ctd\u003eApproximately 2.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecies\u003c\/th\u003e\n\u003ctd\u003e\u003cem\u003eEuphausia pacifica\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiet type\u003c\/th\u003e\n\u003ctd\u003eCarnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeeding frequency\u003c\/th\u003e\n\u003ctd\u003eTwo to five times daily\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eKeep frozen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOther pack sizes in the range\u003c\/th\u003e\n\u003ctd\u003e100 g blister and 907 g flat pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFreight\u003c\/th\u003e\n\u003ctd\u003ePick up only, North Lakes store\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWill it fit my fish?\u003c\/h3\u003e\n\u003cp\u003eKrill Pacifica is a whole animal of about 2.5 cm, and it does not break down into small particles the way a bound cube does. A fish needs a mouth that can take a 2.5 cm item, or the jaw strength to tear one.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFish\u003c\/th\u003e\n\u003cth\u003eTakes whole krill at 2.5 cm?\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriggers, large wrasses, lionfish, groupers, large angels\u003c\/td\u003e\n\u003ctd\u003eYes, whole and easily\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedium cichlids, larger tangs, foxface, larger clowns\u003c\/td\u003e\n\u003ctd\u003eYes, often after tearing it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmall clowns, cardinals, chromis, most gobies\u003c\/td\u003e\n\u003ctd\u003eOnly if chopped; a whole krill is too large\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeahorses, pipefish, mandarins, small blennies, fry\u003c\/td\u003e\n\u003ctd\u003eNo — use \u003ca href=\"\/products\/frozen-mysis-flat-454g\"\u003efrozen mysis\u003c\/a\u003e at around 1 cm instead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eChopping thawed krill with a knife works and is common practice, but it is extra handling at every feed. If most of your stock is in the bottom two rows, buy the mysis.\u003c\/p\u003e\n\n\u003ch3\u003eFeeding directions\u003c\/h3\u003e\n\u003cp\u003eOcean Nutrition's published directions are to feed two to five times a day, and to feed only the amount the fish will consume within five minutes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBreak or snap a portion off the frozen slab. Return the remainder to the freezer immediately — do not let the whole pack soften.\u003c\/li\u003e\n\u003cli\u003eThaw the portion in a small cup of tank water for a few minutes, then pour it through a fine net and rinse if you want to keep the pack liquid out of the tank.\u003c\/li\u003e\n\u003cli\u003eFeed the rinsed krill into flow so it distributes rather than piling up in one spot.\u003c\/li\u003e\n\u003cli\u003eRemove anything uneaten after five minutes. Whole krill left in the sand is a common and avoidable nitrate source.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOcean Nutrition does not publish thawing directions for the flat pack format, so the method above is our own standard practice for whole-animal frozen foods rather than a manufacturer instruction.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Ocean Nutrition frozen food do I need?\u003c\/h3\u003e\n\u003cp\u003eProtein figures below are as fed, from each product's own published analysis.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFood\u003c\/th\u003e\n\u003cth\u003eCrude protein (as fed)\u003c\/th\u003e\n\u003cth\u003eBuilt for\u003c\/th\u003e\n\u003cth\u003eParticle\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/frozen-formula-one-100g\"\u003eFormula One\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e14.5%\u003c\/td\u003e\n\u003ctd\u003eCarnivorous and omnivorous marine fish\u003c\/td\u003e\n\u003ctd\u003eBound cube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/frozen-formula-two-100g\"\u003eFormula Two\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e12.0%\u003c\/td\u003e\n\u003ctd\u003eHerbivorous and omnivorous grazers\u003c\/td\u003e\n\u003ctd\u003eBound cube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKrill Pacifica\u003c\/td\u003e\n\u003ctd\u003e12.2%\u003c\/td\u003e\n\u003ctd\u003eLarger fish and crustaceans\u003c\/td\u003e\n\u003ctd\u003eWhole krill, around 2.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/frozen-mysis-flat-454g\"\u003eMysis\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e11.1%\u003c\/td\u003e\n\u003ctd\u003eSmall-mouthed carnivores and seahorses\u003c\/td\u003e\n\u003ctd\u003eWhole mysis, around 1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/frozen-marine-quintet-100g\"\u003eMarine Quintet\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e9.0%\u003c\/td\u003e\n\u003ctd\u003eMixed communities and varied mouth sizes\u003c\/td\u003e\n\u003ctd\u003eFive-item mix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/frozen-angel-formula-100g\"\u003eAngel Formula\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e11.0%\u003c\/td\u003e\n\u003ctd\u003eSponge-eating angels and butterflies\u003c\/td\u003e\n\u003ctd\u003eBound cube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003ch4\u003eSuitable for\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLarger marine and freshwater carnivores, as listed by Ocean Nutrition for both water types.\u003c\/li\u003e\n\u003cli\u003eCrustaceans, including larger shrimp and hermit crabs.\u003c\/li\u003e\n\u003cli\u003ePredatory freshwater fish such as large cichlids, oscars and archerfish.\u003c\/li\u003e\n\u003cli\u003eKeepers who want a single-ingredient food with no premix, binder or added colour.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNot suitable for\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSeahorses, pipefish, mandarins and other small-mouthed specialists — the animals are far too large.\u003c\/li\u003e\n\u003cli\u003eStrict herbivores as a diet. Tangs and rabbitfish will eat krill happily, but they need the algae in \u003ca href=\"\/products\/frozen-formula-two-100g\"\u003eFormula Two\u003c\/a\u003e or a dried algae sheet.\u003c\/li\u003e\n\u003cli\u003eA complete sole diet. A single-ingredient food carries no added vitamin or mineral premix, so rotate it with a formulated food.\u003c\/li\u003e\n\u003cli\u003eSmall tanks where 454 g will sit in the freezer for many months. The 100 g blister is the better format.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eStorage and cold chain\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKeep frozen in a domestic freezer. Reseal the pack or bag it, as an open flat pack picks up freezer burn faster than a sealed blister.\u003c\/li\u003e\n\u003cli\u003eDo not refreeze krill that has fully thawed. Discard it.\u003c\/li\u003e\n\u003cli\u003eSnap off what you need while the slab is hard. Letting the whole pack soften and refreezing it fuses it into one block you then have to chisel.\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/frozen-mysis-flat-454g\"\u003eFrozen Mysis Flat 454g\u003c\/a\u003e — the small-particle counterpart, so one tank can feed both large and small mouths.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/frozen-formula-one-100g\"\u003eFrozen Formula One 100g\u003c\/a\u003e — a formulated diet with a full vitamin premix, to rotate against this single-ingredient food.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/frozen-nutris-krill-pacifica-100g\"\u003eFrozen Nutris Krill Pacifica 100g\u003c\/a\u003e — the same krill in a smaller pack, if the flat is more than your tank will get through.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/frozen-whole-krill-superba-100g\"\u003eFrozen Whole Krill Superba 100g\u003c\/a\u003e — the larger Antarctic krill species, for fish that take a bigger item still.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eFrozen foods are a consumable and carry no manufacturer warranty period. Your rights under the Australian Consumer Law apply in full and are in addition to anything stated here, including the guarantee that goods are of acceptable quality and fit for their stated purpose.\u003c\/p\u003e\u003cp\u003eFrozen food is pick up only from our North Lakes store, because a pack that thaws on the way cannot be refrozen.\u003c\/p\u003e\n\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eHow big are the krill in Ocean Nutrition Krill Pacifica?\u003c\/h4\u003e\n\u003cp\u003eThey are whole \u003cem\u003eEuphausia pacifica\u003c\/em\u003e of approximately 2.5 cm. That is large enough that small-mouthed fish such as cardinals and most gobies cannot take one whole, and it is the main reason to choose mysis instead.\u003c\/p\u003e\n\u003ch4\u003eWhat is the difference between Krill Pacifica and Krill Superba?\u003c\/h4\u003e\n\u003cp\u003eThey are two different species. Pacifica is the smaller cold-water Pacific krill at around 2.5 cm; Superba is the larger Antarctic species. Choose by the mouth size of the fish you are feeding rather than by protein figure.\u003c\/p\u003e\n\u003ch4\u003eDo I need to thaw and rinse frozen krill before feeding?\u003c\/h4\u003e\n\u003cp\u003eThawing makes portioning easier and lets you rinse off the pack liquid, which reduces the dissolved nutrient load entering the tank. Ocean Nutrition does not publish thawing directions for the flat pack, so treat rinsing as good practice rather than a required step.\u003c\/p\u003e\n\u003ch4\u003eCan I feed Krill Pacifica as my only food?\u003c\/h4\u003e\n\u003cp\u003eIt is not the best sole diet. The declaration is a single ingredient with no added vitamin or mineral premix, so rotate it with a formulated food such as Formula One that carries a full premix.\u003c\/p\u003e\n\u003ch4\u003eIs the flat pack better value than the blister?\u003c\/h4\u003e\n\u003cp\u003eOnly if you will use it. A 454 g flat pack suits a heavily stocked or large tank; in a small tank the same pack can sit in the freezer long enough to develop freezer burn, and a 100 g blister is the better buy.\u003c\/p\u003e\n\u003ch4\u003eWill Krill Pacifica stain my water?\u003c\/h4\u003e\n\u003cp\u003eThe pack liquid carries carotenoid pigment and can tint the water briefly if the whole portion is tipped in unrinsed. Thawing in a cup and pouring through a fine net avoids it entirely.\u003c\/p\u003e","brand":"Ocean Nutrition","offers":[{"title":"Default Title","offer_id":55293354901795,"sku":"ON1574414","price":44.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/frozen-krill-pacifica-flat-4-43505609638179.webp?v=1790235656","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/frozen-krill-pacifica-flat-454g","provider":"Nicks AOT","version":"1.0","type":"link"}