40g breeder sump setup help

HonorableWhat

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I'm trying to set up a 40g breeder for my 100g tank and im having trouble figuring out how to do it, I was hoping you experience people could help. Here's what I'm looking g for

1 reefmat 500, skimmer, refugium, 2 sicce 3.5.

Hiw would you setup the sump If it was you?

I'd like a decently large refugium if possible

Also, what sizes would the baffles be?
 
Definitely search R2R for others that have done this before. I suggest looking at the build threads because there are a ton of DIY reefers out there that have used 40-breeders for sumps.
 
Well, you pretty much have your compartments in your thread haven’t you? :)

Water will flow into compartment no. 1 holding the ReefMat. Then it will flow under the first baffle into the refugium before overflowing in to the skimmer chamber where you can also fit any internal reactors before finally overflowing in to the return pump chamber.

Get all your gear, search the recommended water level for your skimmer and start building :)

Remember, baffles will have to be made from glass preferably to bind properly to your 40 gallon tank.
 
Well tha
Well, you pretty much have your compartments in your thread haven’t you? :)

Water will flow into compartment no. 1 holding the ReefMat. Then it will flow under the first baffle into the refugium before overflowing in to the skimmer chamber where you can also fit any internal reactors before finally overflowing in to the return pump chamber.

Get all your gear, search the recommended water level for your skimmer and start building :)

Remember, baffles will have to be made from glass preferably to bind properly to your 40 gallon tank.
That was the question, would it be better to have the reef mat and skimmer running together in one section, then the refugium, then the return.

But I can't really do that unless I want a really low water level refugium, or I can put my skimmer on a stand since it reccomends a 6-7 inch waterlevel
 
I’d keep the ReefMat and the Skimmer in two separate compartments for that very reason :) Although, i have seen many modified sumps around where the ReefMat and the skimmer are in the same compartment.

Place your ReefMat on the stand and you can pretty much adjust whatever height you want.
 
I’d keep the ReefMat and the Skimmer in two separate compartments for that very reason :) Although, i have seen many modified sumps around where the ReefMat and the skimmer are in the same compartment.

Place your ReefMat on the stand and you can pretty much adjust whatever height you want.
Yeah, I keep trying to keep the refugium as big as possible but I'm just gonna have to bite the bullet I think xD
 
Yeah, I keep trying to keep the refugium as big as possible but I'm just gonna have to bite the bullet I think xD
It’s always a compromise :-) Look around for all the Red Sea Reefer Gen. 1 tanks that has been modified- there’s a lot of good examples on how much room it takes..

I run a Clarisea 3000 in my brand new Cade tank becuase i did not have enough room for a ReefMat without compromising on my skimmer/fuge compartment..
 
I'm trying to set up a 40g breeder for my 100g tank and im having trouble figuring out how to do it, I was hoping you experience people could help. Here's what I'm looking g for

1 reefmat 500, skimmer, refugium, 2 sicce 3.5.

Hiw would you setup the sump If it was you?

I'd like a decently large refugium if possible

Also, what sizes would the baffles be?
I was considering building a sump like the MD elite where the refugium is on the opposite side of the sump from the reefmat. So 4 compartments in this order from L to R.
1. Reefmat that flows into:
2. Skimmer with room for reactors that flows into:
3. Return compartment that returns to the display.
4. Refugium that overflows over a high baffle left into compartment 3 for return to display.

This way the refugium can be as high as the sump allows.

The main issue is thay you'd need to account in your plumbing for 2 inlets. I was considering running a T split to divert water.

Issues I see is ensure proper flow to each side. Ideally id like to set it up so that a majority of the draining water from my display goes to the reefmat and something like a third or quarter of water goes to the refugium. Also it limits how much of the total overflow is going through the main filtration. So perhaps id need to get wider plumbing and higher flow pumps to increase the water turnover to more ideal amounts.

I havent done this yet nor done a ton of research on it but curious if anyone else has ideas, thoughts, or concerns about this setup.

I attached a photo for reference. To me it looks like this setup pictured as needs another baffle between the refugium and the return compartments with aqua mesh in for bubble mitigation.


Screenshot_20260815_223015_Samsung Browser.jpg
 
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