{"product_id":"red-knob-sea-star","title":"Red Knob Sea Star","description":"\u003cp\u003eThe Red Knob Sea Star (Echinaster echinophorus) is a peaceful invertebrate that is generally reef-safe with caution, admired for its bright red knobs, striking body coloration, and unique textured appearance.\u003c\/p\u003e\n\u003cp\u003eMales typically resemble females but may be slightly smaller or have less pronounced knob coloration, while females and juveniles tend to display paler hues and smaller knobs.\u003c\/p\u003e\n\u003cp\u003eThese sea stars reach about 6–8 inches in diameter and should be housed in aquariums of at least 30 gallons, providing a sandy substrate with live rock, ample hiding spots, and open areas for movement. Maintaining stable water parameters—salinity around 1.020–1.025, temperature between 72–79°F, and pH 8.1–8.4—is essential, along with a secure lid since sea stars can occasionally climb out of the tank. \u003c\/p\u003e\n\u003cp\u003eTheir diet should include mysis shrimp, brine shrimp, copepods, finely chopped marine pellets, and occasional algae, ensuring proper nutrition. With attentive care, the Red Knob Sea Star becomes a striking and captivating addition to any marine aquarium, enhancing both the visual appeal and ecological diversity of the tank.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInternational Aquatics Quarantine \u0026amp; Guarantee: All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. On request, we also send photos\/videos after arrival at IA. Some species are import-to-order (3-10 business days). Many common species are already cleared or near the end of QT.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSeveral species will be import-to-order and may take anywhere from 3-10 business days to secure. Once your fish is secured, you will be notified, and the quarantine process will then begin.\u003c\/span\u003e\u003c\/p\u003e","brand":"International Aquatics","offers":[{"title":"Default Title","offer_id":57476615504175,"sku":null,"price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/3532\/6511\/files\/1_c38146b0-5c15-4b01-a498-d1d12cb7e770.png?v=1777528874","url":"https:\/\/internationalaquatics.com\/products\/red-knob-sea-star","provider":"International Aquatics","version":"1.0","type":"link"}