Well I know for sure as I own the Fluval 206 and 306 both you can control the flow and I believe the Eheim classic also but not 100% as I do not own an eheim. I love my fluvals.Thank you for all the help!!!!! It does look like a hurricane in the tank so I have decided to return the filter and buy either an ehiem classic or fluval which would you recommend for a slightly overstocked tank with fish who prefer minimal flow?
You can either cut it down or buy the correct length replacement pipe (sounds like you'd be most interested in a poppy pipe).I got my 206 today and decided to send it back and just keep the hydor and find ways to lower flow, the 206 just holds such a small amount of media compared to the 350. I did have another question though the intake tube on the hydor is just way too tall for my 20long is there any type of replacement intake tube I can buy from another brand that will be a more appropriate size.
how did you go about doing that? I did shut the valve about half way, I am just not sure how much flow is too much flow.I made a custom spray bar for my hydor 350 to help with the flow.
Is the poppy pipe fairly effective in reducing velocity, but still allowing for adequate flow? Any brands you recommend?You can either cut it down or buy the correct length replacement pipe (sounds like you'd be most interested in a poppy pipe).
That is exactly the purpose of a poppy pipe. There are two types of flow - turbulent or laminar. With directed outflow like a lily pipe or shorter spray bar, you usually end up with turbulent flow (rough, directed). With poppy pipes or long spray bars with larger holes, you get a smoother, laminar flow. Both can move the same volume of water with very different characteristics.Is the poppy pipe fairly effective in reducing velocity, but still allowing for adequate flow? Any brands you recommend?