--- product_id: 45002185 title: "Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks" brand: "kolar labs" price: "363.47 DT" currency: TND in_stock: true reviews_count: 13 category: "Kolar Labs" url: https://www.desertcart.tn/products/45002185-crystal-cal-activated-carbon-1-gallon-activated-charcoal-for-aquariums store_origin: TN region: Tunisia --- # Fast-acting clarity Universal filter fit Lab-grade purity Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks **Brand:** kolar labs **Price:** 363.47 DT **Availability:** ✅ In Stock ## Summary > 💧 Crystal-clear water, zero compromises. ## Quick Answers - **What is this?** Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks by kolar labs - **How much does it cost?** 363.47 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/45002185-crystal-cal-activated-carbon-1-gallon-activated-charcoal-for-aquariums) ## Best For - kolar labs enthusiasts ## Why This Product - Trusted kolar labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Simple, Precise Usage:** Just 1 cup per 50 gallons with easy rinse and bi-weekly replacement for consistent crystal-clear results. - • **Optimized Granular Structure:** Engineered pore design ensures maximum adsorption and water flow in any filter type. - • **Premium FCC-Certified Quality:** Crafted to Food Chemicals Codex standards for unmatched aquarium safety and performance. - • **Seamless Filter Compatibility:** Works flawlessly in reactors, canisters, intank, and hanging filters—versatility meets efficiency. - • **Overnight Water Transformation:** Clears cloudy water, colors, and odors by morning—no waiting, just wow. ## Overview Kolar Labs Crystal Cal Activated Carbon delivers 3 lbs of laboratory-grade granular activated charcoal designed specifically for aquarium use. Certified to FCC standards, it rapidly eliminates water cloudiness, discoloration, and odors overnight. Its optimized pore structure and large granules ensure efficient filtration across all filter types, making it the go-to choice for professional-grade aquarium water treatment. ## Description desertcart.com : Kolar Labs Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks : Pet Supplies Review: Kolar Labs activated carbon - Great product - i use this in all filtration for turtle and fish ponds - i noticed an immediate difference when using this product compared to others - with large turtles water will never be crystal clear but this does a great job Review: Love Kolar Labs! - My husband is in the salt water hobby, and uses activated carbon for his tank. He was purchasing it from another company that was double the price for the same amount. When we saw that Kolar Labs sold it, he was so excited to try their product since he has been habit with their other products! It is working so far, the size of the carbon is exactly what we were needing, and it has lasted quite a bit now in his system. Definitely will purchase again! ## Features - CONTAINS 3 lbs (1.3 kg) - FAST RESULTS: Works quickly to eliminate cloudy water, colors and odors overnight – guaranteed - TRUSTED SOURCE: Made according to Food Chemicals Codex (FCC) standards; Bringing you the highest quality, bulk and packaged Activated Carbon - HIGH PERFORMANCE: Laboratory grade granular activated carbon; Specifically made with optimum pore structure for aquarium use - WORKS IN ALL FILTERS: Large granules allow great flow in any filter media bag, cartridge or filter for efficient filtration; Use in reactors, canister filters, intank filters or hanging filters - EASY TO USE: Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Short rinse before use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06W9NJJ1D | | Best Sellers Rank | #25,238 in Pet Supplies ( See Top 100 in Pet Supplies ) #238 in Aquarium Filter Accessories | | Brand | Kolar Labs | | Brand Name | Kolar Labs | | Customer Reviews | 4.6 out of 5 stars 1,422 Reviews | | Global Trade Identification Number | 00851794007238 | | Item Form | Granules, Liquid | | Item Weight | 1.3 kg | | Liquid Volume | 1 gallons | | Manufacturer | Calgon Carbon | | Manufacturer Part Number | CC 1 Gal | | Model Number | CC 1 Gal | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | UPC | 851794007238 | | Unit Count | 1300 Grams | ## Product Details - **Brand:** Kolar Labs - **Item Form:** Granules, Liquid - **Item Weight:** 1.3 kg - **Liquid Volume:** 1 gallons - **Number of Packs:** 1 ## Images ![Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks - Image 1](https://m.media-amazon.com/images/I/71gg24mOqfL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Kolar Labs activated carbon *by B***. on September 28, 2026* Great product - i use this in all filtration for turtle and fish ponds - i noticed an immediate difference when using this product compared to others - with large turtles water will never be crystal clear but this does a great job ### ⭐⭐⭐⭐⭐ Love Kolar Labs! *by M***N on May 20, 2026* My husband is in the salt water hobby, and uses activated carbon for his tank. He was purchasing it from another company that was double the price for the same amount. When we saw that Kolar Labs sold it, he was so excited to try their product since he has been habit with their other products! It is working so far, the size of the carbon is exactly what we were needing, and it has lasted quite a bit now in his system. Definitely will purchase again! ### ⭐⭐⭐⭐⭐ Good value *by D***M on May 15, 2026* Good product used to filter water after medication is used then I replace with seachem purigen ## Frequently Bought Together - Kolar Labs Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks - Kolar Labs GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health (454g) - Geiserailie 15 Pieces Aquarium Filter Media Bags 150 Micrometer Fine Filter Bags Mesh Reusable with Zipper for Activated Carbon Resins(5.5 x 7.9 Inch,Nylon) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/45002185-crystal-cal-activated-carbon-1-gallon-activated-charcoal-for-aquariums](https://www.desertcart.tn/products/45002185-crystal-cal-activated-carbon-1-gallon-activated-charcoal-for-aquariums) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-14*