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Old 10-04-2010, 03:46 PM   #1
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Slowing down refugium flow??? Yes / No

Just wondering about slowing down the flow through the refugium. Should you? Just building the sump now so before I get the glass partitions cut...
Also what is best for refugium contents. I was going with aragonite, some live rock rubble and some algae.

Thanks...Steve
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Old 10-04-2010, 03:53 PM   #2
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I would look at melevsreef.com for some really good sump designs. My favorite designs are the ones where the overflow from the tank is split and returned into two different chambers in the sump. One can be the regular channel with skimmer and other equipment and the other can be a specific refugium section. This way you don't have to have slow flow through all of the sump but you can adjust each flow separately.

As far as best contents, you've got the right idea. Some extra highly porous rock for bacteria and some macro algae to help keep nitrates and phosphates down. Cheato or Caulerpa are the most common. Check your local laws, caulerpa has been banned in some areas due to its invasiveness.
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Old 10-04-2010, 03:58 PM   #3
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Thanks Jimbo7. I've been looking and reading so much. I think it's becoming a bit of an overload. But I'd rather do it slow and right than have to change things a month from now.

Steve
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Old 10-04-2010, 04:11 PM   #4
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Haha, that is definitely the right mentality in this hobby.
Check out this design on melevs site.
Melevsreef.com | Acrylic Sumps & Refugiums
One of our members just constructed his own of this same design. I think it was Idaho_Tank if you do a search.
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Old 10-04-2010, 05:28 PM   #5
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I do prefer to have a slower flow through my fuge than in my sump, as I prefer to allow more contact time of the water with the algaes I keep. For this reason, I made my sump/fuge and the associated plumbing to allow me to do this.

I only keep sand and algae in my fuge, personally.
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Old 10-04-2010, 05:35 PM   #6
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Thanks everyone. Just curious as to having the drain split into sump and refugium. About 25% of total drain into refugium and rest into sump?
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Old 10-04-2010, 05:39 PM   #7
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I set mine up with gate valves going into the fuge section, so that I can control how much I want going in there and divert everything else into the skimmer area of my sump. I still tweak it from time to time too. I don't think %'s are really the best way to define this, moreso in terms of GPH. I run a 700GPH return pump in my tank, and of this I try to limit my fuge to about 100-200GPH and the rest through the sump. No specific reason for why I chose 100-200, that's just where I *think* it should be.
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Old 10-04-2010, 05:41 PM   #8
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That's great thanks so much. I truly am grateful this site exists.

Steve
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Old 10-04-2010, 06:21 PM   #9
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I have a ball valve that controls my flow through the refugium. Slower flow is recommended esp. if you have macro algea in the fuge.
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Old 10-04-2010, 08:26 PM   #10
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fast or slow flow, the algae in the refugium will absorb the exact same amount of nutrients.
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