|Fish Type||Marine Fish, Tropical Freshwater||Marine Fish, Tropical Freshwater||Marine Fish, Tropical Freshwater||Tropical Freshwater||Marine Fish, Tropical Freshwater|
|Aquarium Type||Saltwater, Freshwater||Saltwater, Freshwater||Saltwater, Freshwater||Saltwater, Freshwater||Saltwater, Freshwater|
|Material||Synthetic Fabric, Mesh||Synthetic Fabric, Mesh||Synthetic Fabric, Mesh||Plastic||Synthetic Fabric, Mesh|
Arrived safely, as described, I've been using these whisper cartridges Since 2008. You can fill them with other media other then carbon, as well as adjusting the amount of media to put. Depending of how much fish waist you get, or the number of fish in your tank. I mix ammonia granules with carbon granules.
While these seem cost effective and easy to assemble, I would not recommend them at all! My tank was always well kept and the water was clear. After switching to these filters, following directions closely, in about a week the water started getting unbelievably cloudy and there's black stuff and algae growing everywhere!! I have to do a full water change/cleaning now and buy new filters because these are the only thing that changed so they must be the cause :(