{"product_id":"reef-octopus-nilson-kalk-reactor","title":"Reef Octopus Nilson Kalk Reactor","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-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-ks100:checked ~ .aq-tab-labels label[for=\"aq-tab-ks100\"],\n#aq-tab-ks150:checked ~ .aq-tab-labels label[for=\"aq-tab-ks150\"],\n#aq-tab-ks250:checked ~ .aq-tab-labels label[for=\"aq-tab-ks250\"]{background:#c0392b;color:#fff;}\n#aq-tab-ks100:checked ~ .aq-panels #aq-panel-ks100,\n#aq-tab-ks150:checked ~ .aq-panels #aq-panel-ks150,\n#aq-tab-ks250:checked ~ .aq-panels #aq-panel-ks250{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\u003cdiv class=\"aq-pd\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eReef Octopus Nilson Kalk Reactor\u003c\/strong\u003e is a motorized kalkwasser stirrer that turns calcium hydroxide powder into clear, fully saturated limewater and doses it into your sump on your schedule. A high-torque, low-RPM motor keeps the powder mixed inside an airtight acrylic chamber, so your kalkwasser stays potent instead of carbonating in an open bucket, and your tank gets calcium, alkalinity and a stable, high pH from one simple device. Three sizes cover reef tanks from nano-plus systems to 320 gallons. Pair it with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-reef-kalkwasser\"\u003eSeachem Reef Kalkwasser\u003c\/a\u003e or \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/brs-kalkwasser-calcium-hydroxide\"\u003eBRS Kalkwasser\u003c\/a\u003e, and browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003ereef additives and supplements\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"aq-callout\"\u003e\n\u003cstrong\u003eThree sizes, one design.\u003c\/strong\u003e Every KS reactor uses the same \u003cstrong\u003esealed stirring chamber\u003c\/strong\u003e, the same 1\/4 inch quick-connect plumbing and the same 24 V stirring motor. Pick the body size by your tank volume and how much kalkwasser it consumes.\u003c\/div\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eFresh RO\/DI water from your feed pump or auto top-off enters the bottom of the reactor, rises through the bed of calcium hydroxide while the stirrer keeps it in suspension, and leaves the top output as clear, saturated kalkwasser that drips into the sump. Undissolved particles settle at the bottom, so only clear solution reaches the tank. The motor runs in short intervals on a timer or controller rather than continuously, which keeps the powder fresh and extends the motor's life.\u003c\/p\u003e\n\u003ch2\u003eFeatures, All Models\u003c\/h2\u003e\n\u003cdiv class=\"aq-features\"\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eHigh-torque stirring motor\u003c\/strong\u003e\u003cspan\u003eA low-RPM motor turns the mixing blade slowly and silently so the kalk stays suspended without clouding the dose.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eAirtight reaction chamber\u003c\/strong\u003e\u003cspan\u003eThe sealed lid keeps atmospheric CO2 out, so the kalkwasser holds its strength between refills.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003epH stabilization\u003c\/strong\u003e\u003cspan\u003eSaturated limewater raises and buffers pH, supporting calcification in stony corals and helping precipitate excess phosphate.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003e1\/4 inch quick connects\u003c\/strong\u003e\u003cspan\u003ePush-to-connect input and output fittings take standard RO\/DI tubing for a fast, leak-free install.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eHeavy-duty acrylic\u003c\/strong\u003e\u003cspan\u003eThick, hand-polished acrylic built for a saltwater environment, with a wide base for stability in the sump area.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eTool-free refills\u003c\/strong\u003e\u003cspan\u003eOversized thumb screws release the seal-tight lid so adding powder takes seconds.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eChoose Your Size, Model Comparison\u003c\/h2\u003e\n\u003cp class=\"aq-note\"\u003eSelect a model in the tab section below for the full individual spec sheet.\u003c\/p\u003e\n\u003cdiv class=\"aq-compare\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eKS100\u003c\/th\u003e\n\u003cth\u003eKS150\u003c\/th\u003e\n\u003cth\u003eKS250\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated aquarium size\u003c\/td\u003e\n\u003ctd\u003eUp to 120 gal\u003c\/td\u003e\n\u003ctd\u003eUp to 210 gal\u003c\/td\u003e\n\u003ctd\u003eUp to 320 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003ctd\u003e10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFootprint\u003c\/td\u003e\n\u003ctd\u003e5.5 x 5.5 in\u003c\/td\u003e\n\u003ctd\u003e7.7 x 7.7 in\u003c\/td\u003e\n\u003ctd\u003e12.6 x 12.6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal height\u003c\/td\u003e\n\u003ctd\u003e27.6 in\u003c\/td\u003e\n\u003ctd\u003e26 in\u003c\/td\u003e\n\u003ctd\u003e26 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStirring motor\u003c\/td\u003e\n\u003ctd\u003e15 W\u003c\/td\u003e\n\u003ctd\u003e20 W\u003c\/td\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKalk powder capacity\u003c\/td\u003e\n\u003ctd\u003e90 to 120 g\u003c\/td\u003e\n\u003ctd\u003e120 to 150 g\u003c\/td\u003e\n\u003ctd\u003e150 to 180 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFittings\u003c\/td\u003e\n\u003ctd\u003e1\/4 in quick connect\u003c\/td\u003e\n\u003ctd\u003e1\/4 in quick connect\u003c\/td\u003e\n\u003ctd\u003e1\/4 in quick connect\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eOCT-KS100\u003c\/td\u003e\n\u003ctd\u003eOCT-KS150\u003c\/td\u003e\n\u003ctd\u003eOCT-KS250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003eDetailed Model Specifications\u003c\/h2\u003e\n\u003cp\u003eClick a model below to view its full specification sheet.\u003c\/p\u003e\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-ks100\" name=\"aq-spec-tab\" checked\u003e\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-ks150\" name=\"aq-spec-tab\"\u003e\n\u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-ks250\" name=\"aq-spec-tab\"\u003e\n\u003cdiv class=\"aq-tab-labels\"\u003e\n\u003clabel for=\"aq-tab-ks100\" class=\"aq-tab-label\"\u003eKS100, up to 120 gal\u003c\/label\u003e\n\u003clabel for=\"aq-tab-ks150\" class=\"aq-tab-label\"\u003eKS150, up to 210 gal\u003c\/label\u003e\n\u003clabel for=\"aq-tab-ks250\" class=\"aq-tab-label\"\u003eKS250, up to 320 gal\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-panels\"\u003e\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-ks100\"\u003e\n\u003ch3\u003eKS100 · 4 in body · up to 120 gal · 15 W\u003c\/h3\u003e\n\u003cp\u003eThe compact KS100 fits a tight sump cabinet with a 5.5 inch footprint and holds 90 to 120 grams of kalk powder, enough to keep a mixed reef in the 80 to 120 gallon range topped up with saturated limewater.\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\u003eOCT-KS100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated aquarium size\u003c\/td\u003e\n\u003ctd\u003eUp to 120 gal (300 to 500 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e4 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFootprint\u003c\/td\u003e\n\u003ctd\u003e5.5 x 5.5 in (140 x 140 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal height\u003c\/td\u003e\n\u003ctd\u003e27.6 in (700 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStirring motor\u003c\/td\u003e\n\u003ctd\u003eIntegrated 15 W high-torque, low-RPM motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKalk powder capacity\u003c\/td\u003e\n\u003ctd\u003e90 to 120 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e120 V AC to 24 V AC transformer (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput \/ output\u003c\/td\u003e\n\u003ctd\u003e1\/4 in quick-connect fittings for standard RO\/DI tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHand-polished acrylic body, thumb-screw lid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequires\u003c\/td\u003e\n\u003ctd\u003eFeed pump (dosing pump or ATO) and a timer or controller, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year on the reactor body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-ks150\"\u003e\n\u003ch3\u003eKS150 · 6 in body · up to 210 gal · 20 W\u003c\/h3\u003e\n\u003cp\u003eThe mid-size KS150 steps up to a 6 inch chamber and 120 to 150 grams of powder for reefs in the 130 to 210 gallon range, still on a 7.7 inch footprint that slides beside most sumps.\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\u003eOCT-KS150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated aquarium size\u003c\/td\u003e\n\u003ctd\u003eUp to 210 gal (500 to 800 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e6 in (150 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFootprint\u003c\/td\u003e\n\u003ctd\u003e7.7 x 7.7 in (195 x 195 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal height\u003c\/td\u003e\n\u003ctd\u003e26 in (660 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStirring motor\u003c\/td\u003e\n\u003ctd\u003eIntegrated 20 W high-torque, low-RPM motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKalk powder capacity\u003c\/td\u003e\n\u003ctd\u003e120 to 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e120 V AC to 24 V AC transformer (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput \/ output\u003c\/td\u003e\n\u003ctd\u003e1\/4 in quick-connect fittings for standard RO\/DI tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHand-polished acrylic body, thumb-screw lid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequires\u003c\/td\u003e\n\u003ctd\u003eFeed pump (dosing pump or ATO) and a timer or controller, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year on the reactor body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-ks250\"\u003e\n\u003ch3\u003eKS250 · 10 in body · up to 320 gal · 25 W\u003c\/h3\u003e\n\u003cp\u003eThe KS250 is the large-system reactor: a 10 inch chamber holding 150 to 180 grams of powder for SPS-dominant and commercial displays up to 320 gallons, where kalkwasser demand runs highest.\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\u003eOCT-KS250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated aquarium size\u003c\/td\u003e\n\u003ctd\u003eUp to 320 gal (800 to 1200 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e10 in (250 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFootprint\u003c\/td\u003e\n\u003ctd\u003e12.6 x 12.6 in (320 x 320 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal height\u003c\/td\u003e\n\u003ctd\u003e26 in (660 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStirring motor\u003c\/td\u003e\n\u003ctd\u003eIntegrated 25 W high-torque, low-RPM motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKalk powder capacity\u003c\/td\u003e\n\u003ctd\u003e150 to 180 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e120 V AC to 24 V AC transformer (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput \/ output\u003c\/td\u003e\n\u003ctd\u003e1\/4 in quick-connect fittings for standard RO\/DI tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHand-polished acrylic body, thumb-screw lid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequires\u003c\/td\u003e\n\u003ctd\u003eFeed pump (dosing pump or ATO) and a timer or controller, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year on the reactor body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhich Size Is Right for You?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eKS100\u003c\/strong\u003e: reef tanks up to about 120 gallons, or any system where cabinet space is the limit. Its 4 inch body is the easiest to tuck into a small sump area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKS150\u003c\/strong\u003e: the sweet spot for 130 to 210 gallon reefs and for mixed tanks growing into SPS, with more powder capacity between refills.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKS250\u003c\/strong\u003e: large SPS-dominant displays and multi-tank systems up to 320 gallons, where a smaller reactor would need refilling too often to keep up.\u003c\/p\u003e\n\u003ch2\u003eSetting Up Your Reactor\u003c\/h2\u003e\n\u003cp\u003eNone of the KS reactors include a feed pump or timer. Feed the input with a dosing pump such as the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/ecotech-marine-versa-vx-1-single-dosing-pump\"\u003eEcoTech Marine VERSA VX-1\u003c\/a\u003e or with an auto top-off such as the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/icecap-ato-ez-auto-top-off-system\"\u003eIceCap ATO EZ\u003c\/a\u003e, and run the stirring motor on a timer or an aquarium controller like the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hydros-minnow-smart-controller-dual-dosing\"\u003eHYDROS Minnow\u003c\/a\u003e. Fill the chamber most of the way with RO\/DI water, add powder within the capacity listed for your model, and stir in short intervals a few times a day rather than continuously. The stirring motors are rated for roughly 1,500 hours of run time, so intermittent operation is what they are designed for. Let the mixture settle before your first dose and route the output into a high-flow area of the sump.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eKalk stirrer body with integrated stirring motor (15 W, 20 W or 25 W by model)\u003c\/li\u003e\n\u003cli\u003ePower transformer (120 V to 24 V AC)\u003c\/li\u003e\n\u003cli\u003e1\/4 in quick-connect input and output fittings\u003c\/li\u003e\n\u003cli\u003eInternal stirrer arm and shaft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-reef-kalkwasser\"\u003eSeachem Reef Kalkwasser\u003c\/a\u003e, calcium hydroxide powder for the reactor\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/brs-kalkwasser-calcium-hydroxide\"\u003eBRS Kalkwasser (Calcium Hydroxide)\u003c\/a\u003e, bulk calcium hydroxide powder\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/ecotech-marine-versa-vx-1-single-dosing-pump\"\u003eEcoTech Marine VERSA VX-1 Dosing Pump\u003c\/a\u003e, a precise feed pump for the reactor\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/icecap-ato-ez-auto-top-off-system\"\u003eIceCap ATO EZ Auto Top-Off\u003c\/a\u003e, for feeding the reactor with top-off water\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hydros-minnow-smart-controller-dual-dosing\"\u003eHYDROS Minnow Smart Controller\u003c\/a\u003e, to schedule the stirring motor\u003c\/li\u003e\n\u003cli\u003eMore \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/salt-water\"\u003esaltwater and reef supplies\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the reactor come with a pump?\u003c\/strong\u003e\u003cbr\u003eNo. Each model ships with the reactor body, motor, transformer and fittings. You supply the feed pump (a dosing pump or ATO) and a timer or controller for the motor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run the stirrer all the time?\u003c\/strong\u003e\u003cbr\u003eNo. The motors are rated for about 1,500 hours of operation, so stir in short intervals on a timer or controller and let the unit rest between cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat tubing does it use?\u003c\/strong\u003e\u003cbr\u003eStandard 1\/4 inch RO\/DI tubing with the included push-to-connect fittings, on every model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this ship free?\u003c\/strong\u003e\u003cbr\u003eNo. The KS reactors are oversized packages, so they are excluded from our free shipping threshold and ship at the carrier rate shown at checkout. Local pickup at the store is always free.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill kalkwasser cover all of my calcium and alkalinity demand?\u003c\/strong\u003e\u003cbr\u003eKalkwasser adds calcium and alkalinity in a balanced ratio and raises pH, which is enough for many mixed reefs. Tanks with very high demand may still need supplemental two-part dosing or a calcium reactor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Reef Octopus","offers":[{"title":"KS100 (up to 120 gal)","offer_id":49314494677211,"sku":"OCT-KS100","price":392.69,"currency_code":"USD","in_stock":false},{"title":"KS150 (up to 210 gal)","offer_id":49314494709979,"sku":"OCT-KS150","price":519.74,"currency_code":"USD","in_stock":false},{"title":"KS250 (up to 320 gal)","offer_id":49312841924827,"sku":"OCT-KS250","price":785.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/ks-100_1.jpg?v=1789545350","url":"https:\/\/squeakysaquatics.com\/products\/reef-octopus-nilson-kalk-reactor","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}