IceCap Black Drawstring Media Bag, Large
SKU: IC-DMB-3443
MSRP: $ 2,54
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Available Through Authorized Retailer
- Optimized Loose Media Retention: Tailored mesh weave diameter holds loose chemical and biological filtration substrates without restricting natural water transit.
- Oversized 13x17-Inch Profile: Large footprint provides ample structural capacity to house bulky biological ceramic rings, dense macro-porous stone blocks, or high-volume carbon beds.
- Corrosion-Free Locking Closure: Built around a heavy-duty drawstring loop with a sliding tension lock, entirely bypassing metallic zippers that freeze or rust in saltwater.
- Fully Washable and Reusable: Highly resilient black nylon material easily withstands repeated high-pressure tap flushes and acidic vinegar cleaning dips.
- Stealth Sump Visual Profile: Jet-black material styling blends invisibly into dark skimmer compartments or dark nano rear chambers, preventing glaring white bag eyesores.
- Multi-Filter System Adaptability: Pliable structure easily molds to lay perfectly flat inside canister filter trays, overhead trickle systems, or open sump baffles.
IceCap
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IceCap Large Black Drawstring Media Bag
The IceCap Large Black Drawstring Media Bag (SKU: IC-DMB-3443) is an authentic, high-utility filtration containment pouch distributed by CoralVue to provide a flexible solution for handling bulk loose media. Many chemical resins—like granular activated carbon (GAC), granular ferric oxide (GFO), or specialized nitrate removers—are sold in bulk jars without individual application bags. Tossing loose chemical granules directly into an open under-cabinet sump or filter tray will lead to media washing straight into return pump impellers, which scores ceramic shafts, breaks delicate needles, and clouds your display tank with black dust. The IC-DMB-3443 solves this by providing a reliable, heavy-duty containment boundary that locks down your chemical or biological media while keeping your water path fully open.
Measuring an expansive 13 by 17 inches, this large-format bag offers the extensive structural volume required to hold large portions of biological media, bulk carbon charges, or large-capacity ion exchange resins. While traditional media pouches rely on white fabrics that quickly stain a muddy yellow-brown or utilize metal zipper tabs that rapidly corrode and seize when exposed to high-salinity reef systems, IceCap utilizes a stealth-black premium nylon weave. Sealed tightly by pulling a heavy-duty cord drawstring closed, the bag completely removes any metallic dependency from your water loop. Pliable and tough, it can be tucked flat inside heavy external canister filter trays, laid down beneath filter sock discharges, or placed across high-flow overflow channels for optimal contact time.
Key Features
Prevents Channeled Water Bypass: The generous 13x17-inch surface area allows media to be spread thin and flat across your filtration tray, forcing water to flow uniformly through the bed rather than cutting around a dense clump.
Resists Organic Staining: Deep black fiber construction hides unsightly organic brown mold and yellowing compounds, keeping your filtration room looking clean.
Easy Media Replacement: When chemical media becomes exhausted, simply slide the tension lock open, shake the spent granules into the trash, rinse the bag under a tap, and refill it.
Note: This item covers one standalone large black nylon drawstring bag. Loose chemical media, biological ceramic spheres, and filtration cups are sold under separate product lines.
What’s Included:
(1) IceCap Large Black Drawstring Nylon Media Bag with Integrated Sliding Cord Lock
Technical Specs:
Official Manufacturing Title: IceCap Black Drawstring Media Bag Large
SKU / Factory Part Identifier: IC-DMB-3443
Flat Lay Pouch Dimensions: 13 Inches x 17 Inches (33.02 cm x 43.18 cm)
Primary Structural Material: Heavy-Duty Inert Black Nylon Monofilament
Closure Assembly System: Non-Metallic Nylon Cord Drawstring with Spring Loaded Tension Toggle
Aquarium Salinity Compatibility: 100% Safe for ultra-high salinity Marine Reefs and Freshwater
Reusability Rating Matrix: Fully Washable, Bleach-Safe, and Acid-Resistant for long-term re-use
Instructions:
- Remove your IceCap large media bag from the packaging and open the mouth by pulling the sliding cord lock out away from the nylon collar.
Pour your desired amount of loose chemical media (such as granular carbon) or biological media directly into the open bag. Tip: Fill the bag halfway to allow the media to spread flat.
Pull the drawstring cord tight to cinch the nylon mesh collar completely closed, sliding the spring tension toggle flush against the bag mesh to lock it.
Take the loaded bag to a sink and rinse it thoroughly under running reverse osmosis (RO) or tap water to flush away any fine packaging dust before placing it in your aquarium.
Place the bag directly into a high-flow area of your filtration system, such as flat inside a canister filter basket tray or wedged firmly between your sump's bubble trap baffles.
Refresh your filtration bed every 3 to 6 weeks by sliding the cord toggle open, discarding the old media, and washing the bag clean under warm tap water for its next deployment.
Pro Tips:
- Spread the Media Thin and Flat Rather Than Leaving it in a Tight Ball. When placing this large 13x17-inch bag into your sump or canister filter tray, do not clump it into a dense, thick ball. Water will always take the path of least resistance; if faced with a thick ball of media, it will simply flow around the outside edge, leaving the center of your carbon completely dry and useless. Flatten the bag out like a pancake across your filter tray so that every single drop of water is forced to pass directly through the media bed.
- Avoid Overfilling the Bag to Ensure Maximum Chemical Contact Surface. It is tempting to pack a large media bag completely full to extend the time between changes, but overstuffing ruins performance. Packed tight, the internal granules cannot shift, meaning only the outer layer gets exposed to the water path while the core remains blocked off. By only filling the bag one-third to one-half of its maximum volume, you give the media room to tumble slightly and spread out, ensuring maximum contact surface area.
- Rinse the Bag Separately in Discarded Tank Water to Keep Biological Media Alive. If you are using this large nylon bag to hold biological media (like ceramic rings or porous rock matrices), never rinse the bag under hot, chlorinated tap water during maintenance. The chlorine in tap water will instantly sterilize and wipe out your beneficial nitrifying bacterial colonies. Instead, dunk and swish the bag up and down inside a bucket of salvaged tank water during your routine water change to shed surface sludge without destroying your biological filter.