Reefdose 4 gold broad-spectrum water movement using advanced

broad-spectrum water movement using advanced cross-flow gyre technology to create natural reef-like circulation throughout your aquarium

uneaten food

Enhances coral coloration naturally

Skimmer often turned off for ~10–15 minutes after dosing

pre-measured reagent packet for accurate testing

Reefdose 4 gold broad-spectrum water movement using advancedThe Red Sea ReefDose 4 is a precision 4 head dosing pump designed specifically for reef aquariums. Featuring single drop accuracy dosing heads and intelligent scheduling, it provides reliable and consistent delivery of supplements such as calcium, alkalinity, magnesium, trace elements, and coral foods. Controlled through the ReefBeat app, the ReefDose 4 makes automated dosing simple while helping maintain stable water chemistry for optimal coral