Ravi, 35, Mumbai, struggled with algae blooms due to excess phosphates in his saltwater reef tank.
Used PhosNet in 4-day cycles, reduced phosphates, improved water clarity, saved ₹200 per cycle compared to local media.
You save 2,840 (31%)
Estimated doorstep delivery by 20 Nov - 22 Nov from USA






Effective Phosphate & Silicate Removal at a Competitive Price
Seachem PhosNet is a granular ferric oxide (GFO) media designed for aquarium filtration, available in India through crowcrowcrow, with high porosity and surface area for rapid phosphate and silicate removal. It effectively reduces unwanted nutrients, supporting water clarity and aquatic health.
PhosNet works by binding phosphates and silicates strongly, preventing their release back into the tank. Its high binding capacity ensures long-lasting performance, with easy rinsing before use. Suitable for canister filters, media chambers, and high flow areas, it is ideal for both freshwater and saltwater setups. Customers report clear water and stable phosphate levels after 4-day treatments, with minimal dust production for cleaner handling.
Imported directly from the USA, PhosNet offers reliable performance for Indian aquarists seeking science-backed solutions. Delivered via ExpressBox, duties included, in 11-13 days. Support your aquarium's health with trusted American filtration technology.
Science-Backed Filtration
Seachem’s PhosNet uses granular ferric oxide (GFO), a proven material for rapid phosphate and silicate removal. Its high porosity and surface area ensure effective binding, supported by decades of scientific research and hobbyist feedback. The product is designed for reliable, long-term performance, helping aquarists maintain water quality and clarity without leaching nutrients back into the tank.
Ideal for Hobbyists & Professionals
Supported by a company rooted in science and hobbyist experience, Seachem offers a trusted solution for aquarists seeking effective filtration. Suitable for high flow filters, canister setups, and media chambers, it supports healthy aquatic ecosystems. Skip if you prefer chemical-based solutions or have very low flow systems—this media excels in high flow environments with active biological filtration.
Typical situations where Seachem PhosNet Granular Ferric Oxide Aquarium Filter Media 250g | Rapid Phosphate & Silicate Removal helps — illustrative scenarios, not customer reviews.
Ravi, 35, Mumbai, struggled with algae blooms due to excess phosphates in his saltwater reef tank.
Used PhosNet in 4-day cycles, reduced phosphates, improved water clarity, saved ₹200 per cycle compared to local media.
| Active Ingredient | Granular ferric oxide |
| Porosity | High |
| Binding Capacity | High |
| Allergens | None |
| Serving Size | 50 g per 200 L saltwater or 400 L freshwater |
| Cost per use | ₹6,460 per unit |
| Shelf life after opening | Unspecified |
| Reapplication math | 4 days per cycle, test phosphate/silicate levels |
| Contraindications | Skip if phosphate levels are below 0.02 mg/L |
| Allergens / irritants | None |
| Feature | Seachem PhosNet Granular | Others |
|---|---|---|
| Binding Capacity | High binding capacity of granular ferric oxide, effectively reduces phosphates and silicates | Varies by brand; typically lower binding capacity, may require frequent replacement |
| Application & Use | Supports high flow filters, easy rinsing, 4-day treatment cycle | Often designed for low flow, may need longer treatment or frequent rinsing |
| Price per unit | ₹6,460 per unit | ₹300-₹500 for similar 250g products in India |
| Support for freshwater & saltwater | Yes, suitable for both environments | Mostly freshwater; saltwater support varies, check product specs |
| SKU | nxu8775 |
| GTIN | 00000116125208 |
| Brand | Seachem |
| Size | 250 g (8.8 oz) |
| Color | Brown |
| Pet Type | Fish |
| Item Form | Granules |
About Seachem
Seachem is a globally trusted brand rooted in science, providing aquarium solutions for over 30 years, trusted by hobbyists worldwide.
Compliance & Legal
This is a dietary supplement; not intended to diagnose, treat, cure or prevent any disease.
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This item:
Seachem PhosNet Granular Ferric Oxide Aquarium Filter Media 250g | Rapid Phosphate & Silicate Removal
6,460

This item
Seachem PhosNet Granular Ferric Oxide Aquarium Filter Media 250g | Rapid Phosphate & Silicate Removal
6,460
Total price:
11,040
You save 3,920 (26%) Extra3 items selected
3 items
11,040You save 3,920 (26%) Extra
| Attributes | Current ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 6,460 9,300 | 2,470 3,340 | 2,110 2,320 | 3,210 4,450 | 5,340 6,220 | 40,030 60,970 | 1,900 2,040 |
| Brand Name | Seachem | hygger | hygger | Tetra | Fluval | Master Equipment | dgdgbaby |
| Item Form | Granules | N/A | N/A | N/A | N/A | N/A | N/A |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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