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Old 08-24-2008, 04:45 AM   #1
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Diy de filter

Has anyone made a de filter w/out spending over a hundred bucks? i have an 800 gph pump and wanted to use it for a filter.

anyone find a way to do this? ive used alot of DE when cleaning pool filters, they work great at making a pool look literally polished crystal clear.

i was thinking of a using a fine micron filter ( similar to a magnum ) and placing DE in the filter, however im not sure if that filter will even hold the DE, it may just disperse the DE in my tank which iv seen how it can render pools un-swimmable for a long while.
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Old 08-24-2008, 11:23 AM   #2
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My question is why would you want to use one in a sw aquarium?
They clog quickly and remove way too much from the water column.
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Old 08-24-2008, 03:22 PM   #3
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i want to use it to clean water quickly.
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Old 08-24-2008, 06:09 PM   #4
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What's the de material made from? I would be leery of stuff leeching into the sw.

nevermind...I found this from Wikipedia.
The typical chemical composition of diatomaceous earth is 86% silica, 5% sodium, 3% magnesium and 2% iron.
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Old 08-24-2008, 09:32 PM   #5
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That's it. I used it in FW years ago. A couple of hours in the Magnum and the water would be crystal clear. Need to be very careful handling it though (dust mask is mandatory). I have not heard of using it in SW though. I would think that it would remove too much from the water column.
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Old 08-24-2008, 10:20 PM   #6
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nah, i dont think water can be too clean, i never used a mask, but then again i always used it outdoors but the stuff has gotten in my eyes before which feels very dry and rough.

so the magnum, did you simply place in in the filter to coat it or did you place anything else in there?
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Old 08-25-2008, 09:25 AM   #7
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I would be extremely leery of the silica being soluable in sw since it is so fine.
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Old 08-25-2008, 10:35 AM   #8
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You could opt to run a diatom filter once in awhile to polish it up instead also
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Old 08-25-2008, 12:10 PM   #9
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thats exactly what i plan to use it as, during water changes, i try to keep my sand bleach white so i clean my sand alot and when i stur up the water alot of small particles float around.

also, i put a small chunk of that food that lasts for a week, is a slow disolving tap, i was hoping that would help out my corals filter feed will this work or just dirty my water? my shrimp and crab pick at it once in a while.
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Old 08-25-2008, 12:14 PM   #10
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and the silica should not disolve, i was at a new pool location where they have installed a salt water pool witha DE filter, algae untreated can take over a pool in less then two days, DE makes the water milky in color if it ever gets in the pool, ive only seen this happen when i spill some directly into the pool but not comming from the filter unless it rips, other then that, de in pool filters dont get replaced very offen, but dont leach or disolve in the water.
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