Fluval FX5??

  • We are currently upgrading MFK. thanks! -neo

idle0095

Candiru
MFK Member
Jul 14, 2007
449
2
48
Manchester, NH
what is the GPH for this filter? Online results have 600 all the way up to 900. what one is it?
 
Much of it depends on how your load it up.

Simply depends on how much media, foam, etc. you place inside the canister. Thou ive been very happy with both of mine.
 
so i have all 3 media baskets filled i would guess i would be at 600gph then? i have four different types of media in three baskets. not full like crazy but the norm i would say
 
I believe it is 915 gph, give or take. Like Karma said depending on your filtration. If I'm right, then with filtration should make it in the 800s, only guessing though.
 
Manufacturers always list GPH at 0 head pressure and without media. I set my FX5's up with all bio media in the baskets. (ceramic rings.) If your curious then pick up an in line flow meter but your going to find that it averages between 550 and 700 when filled with media.
 
i am sure there is a thread here somewhere that showed the flow rate when the baskets were full of media at around 600 gph.
 
idle0095;1187933; said:
what is the GPH for this filter? Online results have 600 all the way up to 900. what one is it?
They run at 925 gal per hour with no media.Probably between 600 and 650 with all media loaded.I run 2 on my 100 gal and they do a great job.:thumbsup:pretty easy to work with as well.
 
One thing to remember however when working with large canister filters is that the effectivness of the filter is a combination of flow rate and efficiancy. In simpler terms...if the filter is large enough to TRAP (mechanical) particles in the water and convert waste (biological) on a single pass..then a huge turn over rate isn't needed. In fact if your filter could remove EVERYTHING on a single pass (none of them can this is just an example) then a turn over rate as low as once every other hour would be fine. The more efficiant a filter is the less water it has to turn over to do its job. This is why the HUGE BB serface area of a wet dry sump allow a much lower turn over rate than a HOB unit with limited BB space.
 
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