Replace your filter socks with the Filter Media Cup

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I just received two in Thursday and installed them on my Red Sea Reefer 425xl. Perfect fit without the rings provided. They are also extremely solid. I’m pretty sure I could stand on them and they wouldn’t collapse.
 
I just received two in Thursday and installed them on my Red Sea Reefer 425xl. Perfect fit without the rings provided. They are also extremely solid. I’m pretty sure I could stand on them and they wouldn’t collapse.

Rings? Do you mean the adapter kit?

Do you think the 425xl has the same size filter socks as my 170?
 
Yes, you will get a ring with each one and it is not necessary for the reefer series aquariums. Red Sea only sells one filter sock for the whole reefer series, so that means my sock holder should be the same size as yours.
 
Yes, you will get a ring with each one and it is not necessary for the reefer series aquariums. Red Sea only sells one filter sock for the whole reefer series, so that means my sock holder should be the same size as yours.

OK, so I won't need the combo:
https://www.marinedepot.com/Filter_...imer_Machine_Shop_LLC-6V587521-FIFMME-vi.html

I just need the actual cup:
https://www.marinedepot.com/Filter_...Rimer_Machine_Shop_LLC-6V58752-FIFMME-vi.html

Thank you so much for the replies!
 
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Ah bummer =P

Thank you so much! I'll order it for mine. I'm also getting a bunch of MarineLand filterfloss to put in it. What are you using in your cups?

(https://www.amazon.com/gp/product/B0002565PW/ref=od_aui_detailpages00?ie=UTF8&psc=1)
I’m using filter bags to add a little bit of rox carbon. I’m also going to use a little rowaphos in a bag in the other when needed. Right now my phosphates are a little low. Then I have some of that blue/white filter mat that I cut into a circle and stuffed into the bottom. That’s really to keep the media from escaping. Just got them, so I think I will just play around with it a bit. I have two holders in the 425 sump. Filter floss sounds like a good idea also
 
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I received two (ordered cups only, no rings) and the fit perfect in my Geos Reef Custom Sump (that had 4" filter socks) so I think they will work for any Geos Reef Sump then. The silencers I had from Geo I was using in the socks didn't fit 'in' the cup as they don't have a little lip for them to sit in so I have the silencers sitting on top and they are working just as well (quietly) for me.

I am ramping up running the triton method on this system so wanted to get away from filter socks and this worked perfect.

I wish they came in 7" sizes as I would order several for my other systems. Thanks for carrying this product.
 
Not sure if it’s the sock but my filter media cup keeps overflowing. I’ve tried sponges lightly pack and filter floss. Can’t seem to stop the over flow. Any suggestions
 
How much flow through the cup? I have two handling about 450 gallons an hour. One just has some filterfloss and the other has filter pad cut to size in the bottom and a filter bag with carbon in it.

Edit: also had a couple holes in one that had some plastic flash from the molding process. I removed that. Make sure all the holes in the bottom are clear
 
Can’t really tell the flow through my tank. I have not calculated head loss etc. I have dct 8000 running at 40 percent in my 60 gallon total frag.
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If I turn down to 10 percent it drips over every once in a while.
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Also you might want to put some type of small rubble or media that will hold the filter floss up off the bottom holes
 
I got rubble rock [emoji4]. Let me check what’s up with the holes on the bottom I didn’t even check that

Holes are good
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Added rubble rock
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Seems to fix the problem so far. Hopefully it will last. Tried switching filters twice and it’s seemed to work for a while then the over flowing starts again.
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This probably works the same as the principle of putting stones in the bottom of a flower pot to support drainage. Just need something in the bottom of the cup to keep the floss from clogging the holes.
 
Yeah when you said that I was like duh!!!! I would like to turn my pump up to 60 percent eventually. Think I would just add more rock will allow more flow through. Or maybe cut between some holes to combine for bigger holes.
 
Using a course sponge filter material on the bottom would work best i think. Some of that stuff that traps larger stuff but never clogs up.
 
I bought this:
Marineland PA0100 Bonded Filter Pad, 312-Square-Inch https://www.amazon.com/dp/B0002565PW/ref=cm_sw_r_cp_api_p4e3zbBZ651J5

$4.50 and I just cut a perfect circle to sit at the bottom of the cup. This will last me at least half a year or more I predict and I can just toss the small circles after instead of washing.

I run a VarioS-4 as a retune at about 85% through one filter cup, no overflowing!
 
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