Sporting Goods 
Pet Supplies 
- Rapidly Removes Phosphate And Silicate From Marine And Freshwater Aquaria
- Highly Porous For High Capacity And Bead Shaped For Optimum Water Flow
- Outperforms all competing products
- Not Recommended For Phosphate Based Buffers In Freshwater Aquaria
- 100 milliliters treats 60 US gallons
