{"product_id":"ocean-nutrition-on-disk-marine-fish-food","title":"Ocean Nutrition ON-Disk","description":"\u003cstyle\u003e\n  .aq-pd { font-family: Georgia, serif; color: #1a1a1a; max-width: 860px; margin: 0 auto; line-height: 1.7; }\n  .aq-pd h2 { font-size: 1.45em; font-weight: 700; letter-spacing: -0.01em; border-left: 4px solid #c0392b; padding-left: 12px; margin: 2em 0 0.6em; }\n  .aq-pd h3 { font-size: 1.05em; font-weight: 700; margin: 1.2em 0 0.4em; color: #c0392b; text-transform: uppercase; letter-spacing: 0.06em; font-family: Arial, sans-serif; }\n  .aq-pd p { margin: 0.5em 0 1em; }\n  .aq-callout { background: #1a1a1a; color: #fff; border-radius: 4px; padding: 16px 20px; margin: 1.6em 0; font-family: Arial, sans-serif; font-size: 0.93em; line-height: 1.6; }\n  .aq-callout strong { color: #f5c518; }\n  .aq-features { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 1em 0 1.6em; }\n  .aq-feature-card { background: #f4f4f4; border-radius: 4px; padding: 14px 16px; border-left: 3px solid #c0392b; font-family: Arial, sans-serif; font-size: 0.9em; }\n  .aq-feature-card strong { display: block; margin-bottom: 3px; color: #1a1a1a; }\n  .aq-feature-card span { color: #555; }\n  .aq-compare { overflow-x: auto; margin: 1em 0 1.6em; }\n  .aq-compare table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 0.88em; min-width: 520px; }\n  .aq-compare th { background: #c0392b; color: #fff; padding: 9px 14px; text-align: center; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }\n  .aq-compare th:first-child { background: #1a1a1a; text-align: left; }\n  .aq-compare td { padding: 8px 14px; border-bottom: 1px solid #ddd; text-align: center; }\n  .aq-compare td:first-child { text-align: left; font-weight: 600; color: #444; background: #fafafa; }\n  .aq-compare tr:nth-child(even) td:not(:first-child) { background: #fff8f8; }\n  .aq-check { color: #27ae60; font-weight: 700; }\n  .aq-dash { color: #bbb; }\n  .aq-specs-table { width: 100%; border-collapse: collapse; margin-top: 1em; font-family: Arial, sans-serif; font-size: 0.93em; }\n  .aq-specs-table th { background: #1a1a1a; color: #fff; text-align: left; padding: 9px 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.82em; }\n  .aq-specs-table td { padding: 8px 14px; border-bottom: 1px solid #e5e5e5; vertical-align: top; }\n  .aq-specs-table tr:nth-child(even) td { background: #f9f9f9; }\n  .aq-specs-table td:first-child { font-weight: 600; width: 45%; color: #444; }\n  .aq-tab-radio { display: none; }\n  .aq-tab-labels { display: flex; flex-wrap: wrap; gap: 8px; margin: 1.4em 0 0; }\n  .aq-tab-label { display: inline-block; padding: 10px 22px; border: 2px solid #c0392b; background: #fff; color: #c0392b; font-weight: 700; font-family: Arial, sans-serif; font-size: 0.9em; cursor: pointer; border-radius: 3px; letter-spacing: 0.04em; transition: background 0.15s, color 0.15s; user-select: none; }\n  .aq-tab-label:hover { background: #e8c4c1; }\n  .aq-tab-panel { display: none; }\n  #aq-tab-f1s:checked ~ .aq-tab-labels label[for=\"aq-tab-f1s\"],\n  #aq-tab-f1l:checked ~ .aq-tab-labels label[for=\"aq-tab-f1l\"],\n  #aq-tab-f2s:checked ~ .aq-tab-labels label[for=\"aq-tab-f2s\"],\n  #aq-tab-f2l:checked ~ .aq-tab-labels label[for=\"aq-tab-f2l\"] { background: #c0392b; color: #fff; }\n  #aq-tab-f1s:checked ~ .aq-panels #aq-panel-f1s,\n  #aq-tab-f1l:checked ~ .aq-panels #aq-panel-f1l,\n  #aq-tab-f2s:checked ~ .aq-panels #aq-panel-f2s,\n  #aq-tab-f2l:checked ~ .aq-panels #aq-panel-f2l { display: block; }\n  .aq-note { font-family: Arial, sans-serif; font-size: 0.82em; color: #777; margin-top: -0.5em; font-style: italic; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"aq-pd\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eOcean Nutrition ON-Disk\u003c\/strong\u003e is a press-on feeding disk that sticks directly to your aquarium glass with a built-in suction cup. Fish peck at it for hours, getting natural grazing behavior and slow-release nutrition without dumping a cloud of food into the water. Available in Formula One (carnivore) and Formula Two (herbivore), in 10mm small disks for nano tanks or 20mm large disks for big setups.\u003c\/p\u003e\n\n\u003cp\u003eStock up on more marine staples from our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/nutrition\"\u003efish food collection\u003c\/a\u003e and round out the reef with \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/salt-water\"\u003esaltwater fish\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/corals\"\u003elive corals\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv class=\"aq-callout\"\u003e\n\u003cstrong\u003eStress-reducing slow feeding.\u003c\/strong\u003e The disk's suction cup lets fish graze naturally over hours, mimicking reef foraging behavior — reduces aggression, encourages timid feeders, and keeps water cleaner than dumping flakes.\n\u003c\/div\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eEach ON-Disk has a built-in suction cup. Wet the disk, press it onto the inside of the aquarium glass below the waterline, and watch your fish flock to it. The compressed disk slowly softens, letting fish peck off bite-sized pieces. One disk feeds an average tank for hours, with no leftover food fouling the water.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures — All Variants\u003c\/h2\u003e\n\u003cdiv class=\"aq-features\"\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eBuilt-in suction cup\u003c\/strong\u003e\u003cspan\u003ePress it onto the glass — no clips or feeding rings needed.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eSlow-release feeding\u003c\/strong\u003e\u003cspan\u003eHours of grazing instead of seconds of frenzy. Less waste, cleaner water.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eWhole-ingredient nutrition\u003c\/strong\u003e\u003cspan\u003eFormulated with natural ingredients — no fillers or by-products.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eEncourages timid fish\u003c\/strong\u003e\u003cspan\u003eShy feeders eat better when food isn't competed for at the surface.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eVisual enrichment\u003c\/strong\u003e\u003cspan\u003eWatching fish graze on a disk is half the fun. Great display feature.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eMade by Ocean Nutrition\u003c\/strong\u003e\u003cspan\u003eOne of the most trusted names in marine aquarium nutrition.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eChoose Your Formula \u0026amp; Size\u003c\/h2\u003e\n\u003cp class=\"aq-note\"\u003eSelect a variant in the tab section below for the full individual spec sheet.\u003c\/p\u003e\n\u003cdiv class=\"aq-compare\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eF1 Small\u003c\/th\u003e\n\u003cth\u003eF1 Large\u003c\/th\u003e\n\u003cth\u003eF2 Small\u003c\/th\u003e\n\u003cth\u003eF2 Large\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet Type\u003c\/td\u003e\n\u003ctd\u003eCarnivore\u003c\/td\u003e\n\u003ctd\u003eCarnivore\u003c\/td\u003e\n\u003ctd\u003eHerbivore\u003c\/td\u003e\n\u003ctd\u003eHerbivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisk Size\u003c\/td\u003e\n\u003ctd\u003e10mm (Small)\u003c\/td\u003e\n\u003ctd\u003e20mm (Large)\u003c\/td\u003e\n\u003ctd\u003e10mm (Small)\u003c\/td\u003e\n\u003ctd\u003e20mm (Large)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Size (Best)\u003c\/td\u003e\n\u003ctd\u003eNano – 75 gal\u003c\/td\u003e\n\u003ctd\u003e75+ gal\u003c\/td\u003e\n\u003ctd\u003eNano – 75 gal\u003c\/td\u003e\n\u003ctd\u003e75+ gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Ingredients\u003c\/td\u003e\n\u003ctd\u003eKrill, squid, fish\u003c\/td\u003e\n\u003ctd\u003eKrill, squid, fish\u003c\/td\u003e\n\u003ctd\u003eKelp, spirulina\u003c\/td\u003e\n\u003ctd\u003eKelp, spirulina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Species\u003c\/td\u003e\n\u003ctd\u003eClowns, wrasses, anthias\u003c\/td\u003e\n\u003ctd\u003eTriggers, eels, groupers\u003c\/td\u003e\n\u003ctd\u003eTangs (small), small angels\u003c\/td\u003e\n\u003ctd\u003eTangs, angels, large herbivores\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$8.99\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003ctd\u003e$8.99\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eDetailed Variant Specifications\u003c\/h2\u003e\n\u003cp\u003eClick a variant below to view its full specification sheet.\u003c\/p\u003e\n\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-f1s\" name=\"aq-spec-tab\" checked\u003e\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-f1l\" name=\"aq-spec-tab\"\u003e\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-f2s\" name=\"aq-spec-tab\"\u003e\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-f2l\" name=\"aq-spec-tab\"\u003e\n\n\u003cdiv class=\"aq-tab-labels\"\u003e\n\u003clabel for=\"aq-tab-f1s\" class=\"aq-tab-label\"\u003eF1 Carnivore · 10mm\u003c\/label\u003e\n\u003clabel for=\"aq-tab-f1l\" class=\"aq-tab-label\"\u003eF1 Carnivore · 20mm\u003c\/label\u003e\n\u003clabel for=\"aq-tab-f2s\" class=\"aq-tab-label\"\u003eF2 Herbivore · 10mm\u003c\/label\u003e\n\u003clabel for=\"aq-tab-f2l\" class=\"aq-tab-label\"\u003eF2 Herbivore · 20mm\u003c\/label\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"aq-panels\"\u003e\n\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-f1s\"\u003e\n\u003ch3\u003eFormula One Small · 10mm · Carnivore\u003c\/h3\u003e\n\u003cp\u003eThe compact carnivore disk for nano reefs and mid-size tanks. Built around krill, squid, and fish proteins for clownfish, wrasses, anthias, dottybacks, and other meat-eating marine community fish. The smaller diameter is easier for tiny mouths and fits in tight rockwork crevices.\u003c\/p\u003e\n\u003ctable class=\"aq-specs-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e09722\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet Type\u003c\/td\u003e\n\u003ctd\u003eCarnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisk Size\u003c\/td\u003e\n\u003ctd\u003e10mm (Small)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eNano \u0026amp; mid-size marine tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Fish\u003c\/td\u003e\n\u003ctd\u003eClownfish, wrasses, anthias, dottybacks, gobies, blennies (meat-eating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Ingredients\u003c\/td\u003e\n\u003ctd\u003eKrill, squid, fish meal, shrimp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePress disk to glass via suction cup, submerged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$8.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-f1l\"\u003e\n\u003ch3\u003eFormula One Large · 20mm · Carnivore\u003c\/h3\u003e\n\u003cp\u003eTwice the diameter, designed for 75-gallon-plus marine tanks with larger predators — triggers, eels, lionfish, groupers, large wrasses, and adult angelfish. The bigger disk takes longer for the school to demolish, so even slower or shyer carnivores get their share.\u003c\/p\u003e\n\u003ctable class=\"aq-specs-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e09724\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet Type\u003c\/td\u003e\n\u003ctd\u003eCarnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisk Size\u003c\/td\u003e\n\u003ctd\u003e20mm (Large)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003e75+ gal marine tanks with larger fish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Fish\u003c\/td\u003e\n\u003ctd\u003eTriggers, eels, lionfish, groupers, large wrasses, predator community\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Ingredients\u003c\/td\u003e\n\u003ctd\u003eKrill, squid, fish meal, shrimp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePress disk to glass via suction cup, submerged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-f2s\"\u003e\n\u003ch3\u003eFormula Two Small · 10mm · Herbivore\u003c\/h3\u003e\n\u003cp\u003eThe plant-based disk for nano and mid-size reef tanks. Loaded with kelp, spirulina, and marine plant matter for small tangs, juvenile angels, and any herbivorous reef fish. Encourages natural grazing all day instead of one big meal.\u003c\/p\u003e\n\u003ctable class=\"aq-specs-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e09742\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet Type\u003c\/td\u003e\n\u003ctd\u003eHerbivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisk Size\u003c\/td\u003e\n\u003ctd\u003e10mm (Small)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eNano \u0026amp; mid-size reef tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Fish\u003c\/td\u003e\n\u003ctd\u003eSmall tangs, juvenile angels, foxfaces, herbivorous blennies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Ingredients\u003c\/td\u003e\n\u003ctd\u003eKelp, spirulina, marine plant proteins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePress disk to glass via suction cup, submerged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$8.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-f2l\"\u003e\n\u003ch3\u003eFormula Two Large · 20mm · Herbivore\u003c\/h3\u003e\n\u003cp\u003eThe big herbivore disk for tang-heavy reef tanks. Designed for adult tangs, large angels, foxfaces, rabbitfish, and any saltwater herbivore that needs grazing material throughout the day. Pairs beautifully with weekly nori sheets for variety.\u003c\/p\u003e\n\u003ctable class=\"aq-specs-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e09744\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet Type\u003c\/td\u003e\n\u003ctd\u003eHerbivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisk Size\u003c\/td\u003e\n\u003ctd\u003e20mm (Large)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003e75+ gal tang-heavy reef tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Fish\u003c\/td\u003e\n\u003ctd\u003eTangs (yellow, blue, sailfin, naso), large angels, foxfaces, rabbitfish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Ingredients\u003c\/td\u003e\n\u003ctd\u003eKelp, spirulina, marine plant proteins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePress disk to glass via suction cup, submerged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003ch2\u003eWhich Variant Is Right for You?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eF1 Carnivore · 10mm\u003c\/strong\u003e — Nano reefs and community tanks with clowns, wrasses, anthias, and other meat-eaters under 75 gallons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eF1 Carnivore · 20mm\u003c\/strong\u003e — Big-fish tanks: triggers, eels, lionfish, large wrasses. The larger disk feeds more fish for longer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eF2 Herbivore · 10mm\u003c\/strong\u003e — Nano and mid-size reef tanks with small tangs, juvenile angels, or any herbivore in a community setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eF2 Herbivore · 20mm\u003c\/strong\u003e — Adult tang and rabbitfish tanks. The 20mm disk gives steady grazing for the high metabolic demand of large herbivores.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cdiv class=\"aq-features\"\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/rods-food-leafy-purple-seaweed-30g-tang-food\"\u003eRod's Food Leafy Purple Seaweed\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003ePair with F2 disks for variety in herbivore diets.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-nutridiet-herbivore-tabs-85g-probiotic-sinking-fish-food\"\u003eSeachem NutriDiet Herbivore Tabs\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003eSinking tabs for fish that prefer feeding off the substrate.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/nutramar-tigrio-live-copepods-4oz-saltwater-reef-food\"\u003eNutramar Tigrio Live Copepods\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003eLive food enrichment for picky F1 carnivore tanks.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/nutrition\"\u003eFull nutrition collection\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003eBrowse all our marine and freshwater feeds.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does one disk last in the tank?\u003c\/strong\u003e\u003cbr\u003eAnywhere from a few hours to most of a day depending on tank load. Fish typically pick it down to nothing in 4–8 hours, and any remaining piece can be removed or left to fully dissolve overnight.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the suction cup come loose?\u003c\/strong\u003e\u003cbr\u003eIf pressed onto clean glass, the suction is reliable. We recommend wiping the glass with the disk underwater first to ensure good contact.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this in a freshwater tank?\u003c\/strong\u003e\u003cbr\u003eThe ON-Disk line is formulated for marine fish. Freshwater hobbyists should look at Ocean Nutrition's freshwater formulas or our broader \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/nutrition\"\u003enutrition collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I feed F1 and F2 together?\u003c\/strong\u003e\u003cbr\u003eYes — in mixed-diet tanks (e.g. tangs + wrasses), running a Formula One disk and a Formula Two disk at the same time covers both diets without competition at the surface.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Ocean Nutrition","offers":[{"title":"Forumla 1 - Small 10mm","offer_id":48377503154395,"sku":"09722","price":8.99,"currency_code":"USD","in_stock":true},{"title":"Forumla 1 - Large 20mm","offer_id":48377503187163,"sku":"09724","price":10.99,"currency_code":"USD","in_stock":true},{"title":"Formula 2 - Small 10mm","offer_id":48377503219931,"sku":"09742","price":8.99,"currency_code":"USD","in_stock":true},{"title":"Formula 2 Large 20mm","offer_id":48377503252699,"sku":"09744","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_6f56876f-0965-4239-b8d4-163dc2102835.png?v=1773667984","url":"https:\/\/squeakysaquatics.com\/products\/ocean-nutrition-on-disk-marine-fish-food","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}