I got an EHEIM 2217 for my 90 Gal, which media?

  • We are currently upgrading MFK. thanks! -neo
Yeah just watched the video. I have a question dough, how big for a 90 gal? He said a 2L bottle is good for only 30 gal? So 4L x 60, and so on?

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They work best as back up filter for smaller tanks. You can make 2-3 for the 90 but it will look kinda bad in there. Go to dollar store and get a nicer plastic container for dry goods, it helps with the looks
 
soul_assassin said:
They work best as back up filter for smaller tanks. You can make 2-3 for the 90 but it will look kinda bad in there. Go to dollar store and get a nicer plastic container for dry goods, it helps with the looks
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I'm not too concern about that, but about the work they do. If they help with the ammonia is very good. I saw people made some out of acrylic or plastic boxes too.

 
I think they work really well for bio, you can even run them with a maxijet powerhead or use a powerful air pump to drive as much water through it as possible. You can use matrix in there too instead of k1
 
What about Bio Balls? I know could be a problem because of the size but in a large filter (like UARUJOEY prototype PVC canister). I'm thinking of a 6" PVC. Just a thought
 
What do you thing about making the pad from buffing pads for high speed buffing machines, looks like the could work

 
Scorpio said:
What do you thing about making the pad from buffing pads for high speed buffing machines, looks like the could work
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those pads do work good in a 2262. I put it between the bottom mech and my Lg bag of matrix.
however, I doubt whether the amount of flow in a 2217 would work very well with it.
I am not impressed with the water pumping power on 2217s at all. They hold a Lg amount of biomedia, but with some floss on top, does not move enough water to mechanically filter my 40B QT tank.
I would not expect a 2217 to do any mechanical in a 90, only bio... leave out pads & put the intake way above tank bottom so it gets max flow. or just 1 coarse bottom pad before the biomedia & free flowing after that.
I'd use another filter for mechanical.

Have you hooked that up to any tank yet, for a test run? :-o
 
Well I thought about the flow, I think you have a point there. I also looked into another filter just for mechanical like the Odyssea 700GPH. I was researching about it and with some small mods it could be a mechanical powerhouse. Actually I'm meeting someone tomorrow that is selling one.


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petspoiler said:
those pads do work good in a 2262. I put it between the bottom mech and my Lg bag of matrix.
however, I doubt whether the amount of flow in a 2217 would work very well with it.
I am not impressed with the water pumping power on 2217s at all. They hold a Lg amount of biomedia, but with some floss on top, does not move enough water to mechanically filter my 40B QT tank.
I would not expect a 2217 to do any mechanical in a 90, only bio... leave out pads & put the intake way above tank bottom so it gets max flow. or just 1 coarse bottom pad before the biomedia & free flowing after that.
I'd use another filter for mechanical.

Have you hooked that up to any tank yet, for a test run? :-o
Click to expand...

I haven't, waiting for the media to come on Mon. I think you're right, that's why I'm in favor of DIY canister with a strong pump (internal or external). Here are some comments/reviews I found on the NET

Tested my brand new 2217 (Another filter...not a typo) the day after I installed it:
All stock as recommended by Eheim. All media was rinsed thoroughly prior to install.

Results were Horrible compared to the 264 gph they spec. I measured:

134.5 gph
Mech media, Blue sponge, Bio balls, White pad (no carbon pad)
Bucket at 4' height (same as tank lip)
Spray bar in line
RG style reactor in line (did not affect flow in my initial 2215 test above)
Full length of intake tube that came with filter (until I know what I want I want to do)
The input hose bends and turns down into the bucket (like it would to bend into the tank anyway)
No kinks or pinched hose, etc…

Filled 2 gallon bucket in 53.5 seconds
53.5/2= 26.75 seconds/gal
3600 seconds/hr
3600/26.75=134.5 gph
Please tell me I'm calculating wrong!
 
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