Yihang Carbon: Honeycomb Activated Carbon for Pool & Aquarium Water Purification
"Water Purification Cube" Honeycomb Activated Carbon for Pools & Fish Tanks: Removes Yellowing, Odors, and Chlorine. Essential Aquarium Filtration Media & Fish keeping Supply. Supports Custom Specifications and Bulk Orders.
Water Purification Cube / Honeycomb Activated Carbon / Water-Resistant Honeycomb Carbon / Custom Honeycomb Activated Carbon
In swimming pools and aquariums, honeycomb activated carbon utilizes its highly developed microporous structure to adsorb dissolved organic matter, pigments, and colloidal substances present in the water. Residual chlorine found in tap water poses a lethal threat to fish, shrimp, and beneficial nitrifying bacteria; honeycomb carbon efficiently removes this residual chlorine while simultaneously adsorbing the foul odors generated by decomposing fish waste and uneaten food—as well as general odors within swimming pools—thereby keeping the surrounding air fresh. The channel structure of the honeycomb carbon is highly stable, offering minimal resistance to water flow. Its surface provides an ideal substrate for the attachment and proliferation of nitrifying bacteria; consequently, while performing chemical purification, it also contributes a degree of biological filtration, aiding in the breakdown of ammonia nitrogen and nitrites within the water. It is recommended to place this product as the final stage of your filtration system (positioned after the physical filtration cotton) to prevent large particulate impurities from clogging the carbon's pores.

|
Model |
YHHC-60WF |
Brand |
YIHANG |
|
Dimension |
100*100*100(±3)mm |
Attribute |
Water proof, No water proof |
|
CPSI |
100 (25/50/150/200 is available) |
Filling density |
300±50kg/m³ |
|
Carbon tetrachloride adsorption/ CTC |
55-60% |
Iodine value |
≥500mg/g |
|
Specific surface area |
≥600m²/g |
VOCs adsorption volume |
≈80kg/m³ |
|
Wall thickness |
0.5-1mm |
Compressive strength |
Positive pressure≥0.9Mpa; |
|
Pressure drop |
≤490Pa |
Adsorption substance |
Removes chlorine and fishy odors from water. |
|
Scenario |
Recommended Type |
Reason |
|
Small fish tank / planted tank |
Small pore (1.5–3mm) waterproof |
Clear water; mainly adsorbs pigments and odors; large surface area for fast purification. |
|
Large fish tank / sump filter |
Medium pore (3–5mm) waterproof |
Large water volume; smooth flow; balanced adsorption and wear resistance. |
|
Koi pond / outdoor fish pond |
Large pore (5–8mm) waterproof |
More impurities and algae; anti-clogging, high permeability and easy cleaning. |
|
Swimming pool / circulating system |
Large pore 5mm waterproof |
Large water volume and fast flow; low resistance; no disintegration after long soaking. |

1. Pond and Aquaculture Water Purification
2. Livestock Drinking Water Purification
3. Swimming Pool and Bathhouse Water Purification




Q: How do I select the appropriate specifications for honeycomb activated carbon for different water treatment scenarios?
A: For aquarium and swimming pool applications, the key factors to consider when selecting honeycomb activated carbon are pore size and iodine value. For home aquariums, the preferred choice is a water-resistant honeycomb activated carbon block measuring 100x100x100mm, with a pore size of approximately 3mm and an iodine value of 800+. For swimming pools, however, you should select an industrial-grade, water-resistant carbon featuring a larger pore size (5mm+) and high structural strength.
Q: How often should honeycomb activated carbon used for water treatment be replaced?
A: Although honeycomb carbon can be cleaned and reused, its adsorption capacity is finite.For removing yellow discoloration or odors: Replacement is recommended every 1 to 3 months.
For routine maintenance: It is generally not recommended to use the same carbon for longer than 6 months. If you notice that the water quality begins to turn yellow or becomes cloudy easily, this serves as a signal that it is time for a replacement.
Q: Do you support the customization of special specifications?
A: Yes, we do. We offer customization options for honeycomb dimensions, pore sizes, and packaging specifications, and we can provide third-party inspection reports upon request.
We offer free sample testing and technical guidance support. For bulk purchases, we provide customized solutions and preferential pricing. Furthermore, we guarantee free returns or exchanges for any quality-related issues that arise within the warranty period.
Qualifications & Certifications: ISO 9001 Quality Management System Certification; Compliant with safety requirements for VOC (Volatile Organic Compound) waste gas treatment.
Ultra‑Strong Filtration & Odor Control: Honeycomb‑structured activated carbon maximizes surface area to adsorb contaminants, remove odors and keep water crystal‑clear.(Note: It will begin to take effect one week after placing it in the fish tank.)
Multi‑Use Versatility:One purification cube is needed for every 20 gallons of water. If the water tank volume is greater than 20 Gallons, more cubes are required. Safe and effective for aquariums, fish tanks, ponds, horse/livestock troughs and outdoor water features—A cube can be used in multiple scenarios.
Eco‑Friendly & Reusable: Durable Activated Carbon block with cotton wrap can be rinsed and reused for up to 6 months, reducing waste compared to disposable filters.
Easy Setup & Maintenance: No tools required—simply rinse cube with warm water, place in water inlet or trough, and replace every 3–6 months for optimal performance.
Premium Honeycomb Design & Ideal Dimensions: Compact 4 × 4 × 4 inch (≈10 × 10 × 10 cm) cube fits most tanks and troughs, while its rigid honeycomb structure ensures long‑lasting filtration power.

