You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
Search results
The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
I'm running an FX4 on a 46 gallon bow front. That's at least 10x turnover. Keeping cichlids and they are doing fine. Water's crystal and numbers are perfect.
I was using that same Fluval internal filter in a 46 Bow front and found it didn't work that well. It seemed to have very little flow. I'm now using an FX4. I'm sure the 306 would work well for you. But I believe in over filtering so I'd go with the 406.