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Old 02-01-2005, 04:20 PM   #1
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Refugium Pump

Okay, built my refugium and now will be needing a pump. My questions are: 1) What flow rate do I need to look at for this 30 gallon refugium, I know it is not supposed to be too high and 2) I have read that you don't want one that has an impeller due to the chopping up of critters that might be travelling to the tank, so what model does not have an impeller?

Thanks for all advice.
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Old 02-01-2005, 06:06 PM   #2
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Is the fuge above or below the main tank? If below, how many feet does the water have to go up to get to the tank? I don't know of any pumps without impellars but they are probably out there. You gph will depend on the head pressure to get the water up to the tank so you will need to give us a length of travel.
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Old 02-02-2005, 01:36 PM   #3
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The fuge will be under the stand. Distance will be about 4-5 feet. That impellar thing kinda threw me off. I wasn't sure if you get a pump safe for pods. What water flow should I be shooting for here? I am planning to drill my HOB wet/dry and running the water from it to the fuge. Keeping it as a filteration piece. In the process I am sort of converting my w/d to a mini-fuge itself. Double the action. Good or bad?

Another thing I need some input on is the best plants and critters to put in it. I've read about some plants going sexual and crashing tanks. What are some of everyone's preferences?

Thanks Again!
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Old 02-03-2005, 07:44 PM   #4
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My sump is about 4 to 5 feet under my tank and I use a 375 gph return pump. That might be a little high but it's what I had laying around. The wet/dry as a fuge with live rock rubble is a fairly common practice. I don't know about the hob feeding your sump. I guess that as long as when the power goes off, everything shuts down it might be ok. And also when the power comes back on everything starts back up on it's own. You'll definitely want some snails, reef safe hermits, and maybe some sand sifter stars. I have chaeto for my plant life in my fuge but I would think caularpa, shave brush, mangroves or just about any algae will work. I don't know about the plants going sexual but I'm sure someone else will chime in soon. As always this is JMHO and YMMV.
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Old 02-04-2005, 07:08 PM   #5
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Thank you Kat for the comments/advice. I'll try to do a search for info on the "bad" things to watch out for from plants. Maybe come across something there.
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Old 02-04-2005, 07:21 PM   #6
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The caulerpa goes sexual but not if you keep it under lights 24/7. I currently have some caulerpa but heard chaeto is a much easier choice since it doesn't go sexual.
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Old 02-04-2005, 08:31 PM   #7
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Any idea how long Caulerpa would have to be out of the light to cause a problem? I mean if the electricity goes, what is the time limit or is that known.

Also can I get advice on the type of light needed for a refugium. I have a basic 36" flourescent fixture I was going to use with a bulb of whatever K rating I need. Would that work or should use my compact? It is 48" and I didn't want to use that much light.
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Old 02-04-2005, 09:47 PM   #8
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Most any kind of plant light or bulb over 6500k should do for a fuge. It's just for algae not actually for corals.
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Old 02-05-2005, 12:44 AM   #9
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Not real sure on the time limit, though people have had success with just a 12/12 cycle, so I doubt thats a huge issue, do you have a lot of power outages? I light my caulerpa 24/7, and prune weekly, both are supposed to keep it from going sexual, though theres really no gaurantee. I know there are risks, but I've had 0 nitrates since adding it, I just can't let it go. Some argue that the DSB is just as effective once properly established, I just can't see that though. I'm using 40 watts NO flourescent on a 20 gallon tall made into a sump, and the stuff is growing like crazy.
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Old 02-05-2005, 02:10 AM   #10
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Power outages are not a real problem I just wanted to make sure that there wasn't some unseen danger of crashing the tank due to my not knowing about it.
Here is something else- I want to drill my HOB wet/dry and flow the water into my fuge from it. Then using the pump I am currently running on my w/d to send back into the tank. Anyone ever done this or seen it? I haven't been able to find any diagrams or stories about this.
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