Fluval Foam Filter Block (204/205/306 & 304/305/306)- 2-Pack

Fluval 304-305 Tune Up Kit

Fluval Fine Filter Water Polishing Pad for 304/305/404/405 Models - 6-Pack

Fluval Ceramic Shaft Assembly, for Impellers w/Straight Fan Blades Only, 304, 305, 404, 405

Fluval 306 External Filter

Hagen Fluval Aquastop For Fluval 104-404, 105-405 Series, Ribbed Hosing

Fluval Magnetic Impeller w/Straight Fan Blades, 304, 305

Fluval 3/404-3/405 gasket

Fluval 3/404-3/405 Impeller Cover for Straight Fan Blades

Fluval MSF Motor Housing for Canister Filter, 2/3by 6 by 9-Inch

A-20063 Fluval Filter Seal Gasket O-Ring for models 304, 305, 404, 405

Fluval Carbon, 100-gram Nylon Bags - 3-Pack

Fluval Impeller Cover, for Impellers w/Curved Fan Blades Only, (Original 304, 404 Series)

Fluval MSF Filter Case for Canister Filter, 6-4/5 by 9-4/5 by 10-1/2-Inch

Fluval Rubber Adapter for Ribbed Hosing, 304, 305, 404, 405 (2 Pieces)

12 Foam Filter Pad Inserts for Hagen Fluval 204 205 304 305 (A-222)

Hagen 24-Pack Fluval Aquarium Water Filter with Foam Block for 204/205 and 304/305 Model

Fluval Filter Foam Block for 204/205 and 304/305 (2 pack)

Fluval Self Primer Assembly, 104-404, 105-405 Polybag

Fluval Fine Filter Water Polishing Pad for 304/305/404/405 Models - 6-Pack by Rolf C. Hagen (USA) Corp. [Pet Supplies]

The above is "Fluval 304, Fluval Foam Filter Block (204/205/306 & 304/305/306)- 2-Pack" recommended related products, Please click on the picture to see product details and fluval 304 reviews!

Fluval 304 Popular Q&A

Q: Fluval 304 question...?
A: Yes you can-I've always done that with my Fluvals. As long as the water flow agitates the surface of the water you will still get gas exchange at the surface. Read More »

Q: How Do I Troubleshoot the Impeller For the Fluval 304?
A: 1. Unplug the Fluval 304 from the electrical outlet. 2. Pinch the two tabs on the impeller cover to open the impeller well. The impeller cover is located on the... Read More »

Q: Fluval 304 not working...help?
A: It probably is filtering but doing a 100% water clean will put your tank back into a full cycle again. Did you rinse the filter in tap water or aquarium water? ... Read More »

Q: My Fluval 304 Won't Start.
A: 1. Test the electrical outlet that the 304 is plugged into with a device you know works. If the device does not power on, go to your breaker box and reset the t... Read More »

Q: Fluval 304/ Phosban?
A: right IME chuckdee whilst I have no doubt that the reactor is better, I have used different chemical filter mediums in cannister filters - Rhowphos, Aquaphos an... Read More »