View Full Version : Amount of flow in refugium?


Ocelot199
12-01-2006, 11:28 PM
Just wondering what other people do with their fuges. I'm contemplating getting a very low GPH (like, 50-60 range) powerhead for my fuge to make sure the water isn't just sitting in parts that aren't close enough to the overflow (flows into the sump where my skimmer and return line are) and gravity feed (which I was stupid enough to put close to each other). The only things in the fuge right now are about half an inch of LS, some LR, and an awsome little ball of Chaeto. Is it even worth my time? I know Chaeto isn't all that fond of high flow...

wwest
12-01-2006, 11:55 PM
Actually a tumbling chaeto is a happy chaeto. :)

I have had my softball size of chaeto for about two weeks and it has grown about double its size. Now my flow is directly on the chaeto, now the chaeto isnt tumbling but it is moving fairly well.

I would recommend adding a power head like you mentioned..

fat walrus
12-02-2006, 01:14 AM
Just wondering what other people do with their fuges. I'm contemplating getting a very low GPH (like, 50-60 range) powerhead for my fuge to make sure the water isn't just sitting in parts that aren't close enough to the overflow (flows into the sump where my skimmer and return line are) and gravity feed (which I was stupid enough to put close to each other). The only things in the fuge right now are about half an inch of LS, some LR, and an awsome little ball of Chaeto. Is it even worth my time? I know Chaeto isn't all that fond of high flow...
How large is your sump and what is the flowrate through it? In other words, what is you current turnover in the sump before adding an powerhead?

Ocelot199
12-02-2006, 01:50 PM
How large is your sump and what is the flowrate through it? In other words, what is you current turnover in the sump before adding an powerhead?

Fuge is 10 gallons, sump is around 20 gallons total space, but its only half full of water... so another 10 gallons or so. A gravity feed from my overflow brings the water down through a branching PVC, the main branch leads into the sump, the smaller branch goes into my fuge. The overflow from the display is rated at 600 GPH. I dunno what the GPH is through the fuge back into the sump, cause my overflow is just a 45 degree cut through the corner of a piece of glass that divides up the two areas with some plastic mesh for a sort of prefilter. It seems to work alright, but the flow through the fuge into the sump isn't much at all.... if I had to estimate, I'd say 50 GPH at most. The return from my sump is a mag 7, rated at 700 GPH, with maybe 3 feet of PCV... so with headloss its more like 550 or so.

I tried taking a pic, but my sump/fuge area is in a really tight place under my tank... its hard to get the camera where i want it. Also makes maintenance a pain :/