How much flow through my HOB fuge??

[steveoutlaw]

I have a small HOB fuge and I'm currently using a MJ400. Is this too much flow?

[zygote2k]

Fuge shouldn't have so much current that things on the bottom get stirred up. You don't want the pods in a cyclone.

[bluefunelement]

My small CPR has MJ600 and I'm thinking of adding a small 80pgh pump recirc in the fuge itself.

[steveoutlaw]

Ok, then I'll take the MJ400 as not being too much. There is definately not a cyclone and none of the sand is getting stirred up. Thanks all.

[davelin315]

I don't know how much flow is passing through there, but I will say that the place in my system where I get the most pods present is my overflow where there is indirect flow and the detritus settles out. I would guesstimate that in a tiny area, probably no more than 1'x4" total, there were well over 1,000 mysids and pods combined when I siphoned the detritus out for Sam's cuttlefish.

[steveoutlaw]

I don't know how much flow is passing through there, but I will say that the place in my system where I get the most pods present is my overflow where there is indirect flow and the detritus settles out. I would guesstimate that in a tiny area, probably no more than 1'x4" total, there were well over 1,000 mysids and pods combined when I siphoned the detritus out for Sam's cuttlefish.

 

 

I've got about 3" of sand in the fuge and a pile of live rock rubble. All of the flow that's going through it is indirect i guess because the pump output has to go through a baffle before it gets to the rock. Plus, I'm planning on putting some chaeto and caulerpa in there so that should help as well.