Would this be a good sump for a 29 gallon

lippydippy

AC Members
Oct 5, 2007
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Columbus, Ohio
wanted to make a sump and i have a 29 gallon that i have ready for a sump for my top 29 gallon? or should i use a 10 gallon and just scale it down?
i have a Aqua Medic Ocean Runner or2500 with a fluidized bed filter and a diy co2 reactor to add to the sump.
thoughts please

The first three pictures are of the materials used. The dividers and drip tray are made out of corian. The black/gray pieces are made from corian to hold the drip tray and filter sock tray in place.
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The sump: An old 55g mirror back tank
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Assembly:

Silicone the supports in place to hold the filter sock tray.
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Clamp the supports in place while the silicone gets tacky enough to hold the supports:
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Tape the first divider in place at the top, and tape the glass to keep the silicone beads nice (be sure to remove the tape with the silicone wet):
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Silicone the drip tray supports in place in the same manner as before
Clamp with an extra board to make up for the shallow clamp:
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Add 2" blocks under the next divider and silicone it in place in the same manner as before:
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While the rest of the silicone is getting tacky enough to remove the clamps, make the drip plate:
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Test fit and install the last divider:
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Make a new filter sock holder when the LFS has a different size than planned:
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Drop in the drip tray and filter sock tray and look for mistakes!
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I have to thank JustLooking, since I used his sump design, I just made some small modifications. Also, really need to thank Rallysman for helping me with the construction on the sump and snagging all of these step by step pictures. Everything went way to smooth.

Update 8-10-07:

A close up shot of the unions that are dumping water into the sump. We used unions so that we would be able to keep the feed height low and yet still be able to pull the filter sock out, if needed.

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A shot of the waterfall that flows over the Corian material, and spreads out on the drip plate.

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The drip plate and all of my bio balls. (10 gallons of them.)
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An overall shot of the sump running.

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so you are going to use the same/similar set up for a 29?

the only issue I noticed was CO2 added to sump.

if you can enclose the bioball section to help trap co2 off gassed you will conserve a bit on CO2. looks like it should be fairly easy to do
 
Last edited:
it should be fine.

the only issue is you will need to bump the CO2 to keep the level high for plants(I am guessing that's why the added co2)

sumps are great for aggitating the water and increasing surface area and off gassing. the problem is they tend to off gas extra gasses like CO2. so you will lose CO2 as the water passes over the bioballs.

I have a 75 with sump and the bioball area is enclosed..so CO2 gas gets trapped in that area and basically it repopulates the water.
my sump is a bit different in build..the water drops from the tank thru a filter plate( has filter matt) on a tray that slides in above the bioballs..the water then passes thru the bioballs to get to the return , the water has to pass under baffles (similar to your set up) most of the off gassing happens in the chamber with the bioballs which is sealed.

the result is less lost CO2.
 
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