LR rubble

[two11devan]

What exactly is the benefit of having LR rubble in the intake section of a sump? (yes, more sump questions!!! sorry!) There is going to be a ton of it in the tank so whats the use of having it in the sump?

I had it built into my design for my 30 gal long. I just got my skimmer and its a little on the large size. If i dont want a tiny fuge I might have to cut out the LR rubble section completely or make that part really small. Just wondering how important it is to have (if at all). Thanks!

 

[ccCapt]

If you have, depending on the density of the lr, between 1-2 lbs/gal you don't really need it. You can make the fuge in your sump bigger if needed.

 

[FishFrik]

The benefit is simple - more LR = more filtration

 

[angelscrx]

Mkaes great hiding places for copepods and amphipods. They breed there and the LR rublle is also great as additional filtration as mentioned.