IceCap Color-Changing Mixed Bed Deionization Resin — 6.5 lbs (SKU: IC-RI-DIRES75)
The IceCap 6.5 lb Color-Changing Mixed Bed Deionization Resin (SKU: IC-RI-DIRES75) is an authentic, professional-grade water purification medium distributed by CoralVue to provide pristine, contaminant-free baseline water for marine reef displays and advanced freshwater aquascapes. While high-performance reverse osmosis (RO) membranes are highly effective at rejecting the vast majority of tap water impurities, small atomic-weight ions like silicates, phosphates, and nitrates can still sneak through into your collection bucket. If left unchecked, these residual impurities can fuel stubborn nuisance algae outbreaks and stress sensitive stony corals. The IceCap DI resin serves as an ironclad final boundary, utilizing highly tuned cation and anion exchange beads to grab those final trace minerals and lock your output at absolute 0 TDS.
The primary operational advantage of the IC-RI-DIRES75 blend centers on its True Color-Indicating Virgin Matrix. Many cheap, bulk resins rely on recycled or re-regenerated materials that exhibit diminished lifecycle tracking. IceCap uses only virgin, un-reclaimed nuclear-grade resin beads. As the ionic capacity of the bed slowly depletes from the bottom up, the media undergoes a sharp visual transformation, turning from deep blue to a distinct amber brown. This explicit visual feedback eliminates the guesswork of water management, showing you exactly when it's time to repack your filter basket. Shipped in a durable, heavy-gauge vacuum pouch to prevent pre-exposure to ambient carbon dioxide, this 6.5 lb pack offers a reliable, budget-friendly supply for high-volume reef keepers.
Key Features
Prevents Destructive Algae Blooms: Stripping out silicates and phosphates stops diatom films and hair algae from taking hold in your display tank.
Clear Exhaustion Tracking: The bright color-changing interface lets you monitor your remaining filter life at a single glance through your clear canister.
Stops Hazardous Chemical Creep: Acts as a safety net against variable municipal water supplies, catching unexpected spikes in chloramines or heavy metals.
(Note: This retail package includes (1) vacuum-sealed 6.5 lb bag of IceCap Color-Changing DI resin. Refillable clear cartridge housings and RO canister wrenches are sold under separate water purification categories).
IceCap Deionization Resin Supply Scale
| Model Classification |
Factory SKU Identifier |
Total Material Weight |
Estimated Cartridge Yield |
Primary System Target |
| IceCap DI Resin (Single) |
IC-RI-DIRES125 |
1.25 lbs (~20 oz) |
1 Full Cartridge Fill |
Nano Tanks & Single Refresh |
| IceCap DI Resin (5-Fill) |
IC-RI-DIRES75 |
6.5 lbs (~104 oz) |
5 to 6 Cartridge Fills |
Standard Reefers & Multi-Stage RO |
| IceCap DI Resin (Bulk) |
IC-RI-DIRES20 |
20.0 lbs (~320 oz) |
16 to 18 Cartridge Fills |
Large Coral Facilities & Service Routes |
