DIY Freshwater Sump

[NigelK8485]

I'm about to upgrade my tank from a 150 to a 225 gallon. In the process I think I'm going to switch from the FX5 and FX6 canisters I have running currently to a sump system.

I'm sick of having to lug around the canisters and cleaning them out so I'm hoping this sump will make it simpler. I'm also having the 225 built with dual overflows so figured why not.

I am buying a 75 gallon tank to make the sump out of and would love to see any pictures or designs for freshwater sumps that any of you have.


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[Delapool]

I know it's been done but rare threads


Have you tried the search function at all? Sorry, I can't think of any active threads on this.

[Harry Vysekal]

Originally Posted by NigelK8485

I'm about to upgrade my tank from a 150 to a 225 gallon. In the process I think I'm going to switch from the FX5 and FX6 canisters I have running currently to a sump system.

I'm sick of having to lug around the canisters and cleaning them out so I'm hoping this sump will make it simpler. I'm also having the 225 built with dual overflows so figured why not.

I am buying a 75 gallon tank to make the sump out of and would love to see any pictures or designs for freshwater sumps that any of you have.


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50l sump for my 30l barrack.
Gravity canister filter




Canister on the left, after water from sump passes all the stages it re enters container with fluidised media




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[93MSB]

Here is my 29g sump, main tank is a 60 gal with ~30 mbuna

Overflow is a bean animal design coming down three 1.5" pipes.

First partition is coarse mechanical filtration
Second partition is kaldnes k1 fluidized media. I have a 15lph air pump with 2 bubble walls circulating the media
Third partition at one point was a series of bubble traps until I realized it was an eheim compact return pump actually causing the micro bubbles. It now has a pothos plant and does the fine mechanical filtration. I may try using matala mat in this partition when I need new media.

The return pump is a jebao DCT-6000 w/1" tubing