IceCap CO2 Scrubber, Medium

IceCap Medium CO2 Scrubber pH Upflow Reactor (IC-CO-100)

The IceCap Medium CO2 Scrubber (SKU: IC-CO-100) is an authentic, mid-sized water care reactor distributed by CoralVue to unlock optimized coral calcification and accelerate skeletal growth rates in modern reef systems. In modern well-insulated homes and commercial spaces, pet and human respiration causes ambient indoor carbon dioxide (CO2​) concentrations to rise drastically above natural outdoor air levels. When your protein skimmer draws this unrefined air into its high-speed venturi, the gas instantly dissolves into the water column, creating an ongoing influx of carbonic acid (H2​CO3​). This acid actively depresses your baseline pH. Low pH forces corals to expend significant metabolic energy just to build their calcium skeletons, stalling overall growth and causing problematic daily parameter swings. The IC-CO-100 breaks this cycle cleanly and affordably.

Featuring a heavy-gauge 4-inch clear acrylic body housing, this medium-scale scrubber serves as a high-contact chemical air filter. You simply hook up the included air tubing from the top output port of the reactor directly to the air intake on your skimmer pump (bypassing or removing your stock skimmer silencer cup). As the skimmer pump naturally sucks room air through the reactor base, the air cascades upward through a 2.2-pound bed of soda lime pellets. This dense reactive matrix traps the gaseous carbon dioxide on contact, locking it into solid calcium carbonate. Only pure, CO2​-stripped oxygen is allowed to enter your skimmer's bubble chamber. Designed for small to medium tank footprints, the Medium Scrubber provides a stable, predictable, and highly efficient solution to maintain a rock-solid 8.3 pH baseline without taking up massive cabinet real estate.

Key Features

• Built-In Secondary Deflector Plates: Integrated interior baffle plates guide incoming air uniformly across the entire media chamber, preventing air from "tunneling" up a single side.

• High-Clarity Heavy Canister: Transparent structural wall construction permits instant visual checks on your media bed's color shift indicator from across the room without popping the seal.

• Space-Saving Form Factor: The 4-inch footprint fits perfectly inside crowded reef tank sumps or tight under-cabinet filtration centers while still holding a substantial charge of media.

Note: This filtration package includes the standalone medium reactor body, integrated bracket assembly, 3/8-inch fittings, connecting airline tubing, and 1kg of starter media. High-volume replacement media jars are sold under separate product categories.

IceCap Upflow CO2 Scrubber Series Profile

Online exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.