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Old 03-29-2010, 08:23 PM   #41
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You would mix your salt with the RO/DI water then test for the proper SG (specific Gravity or Salinity) then use a power head and a heater to mix the mixture for at least 24 hrs ahead of your water change. The heater is to bring the temp. up to the same as your tank water. Then siphon out your water in a PWC and replace that water with the New(fresh) saltwater that you just mixed up. Done...Sounds like alot of work but after the first time it's a snap.
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Old 03-29-2010, 08:26 PM   #42
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Oh, check here for information on a RO/DI unit...
Reverse Osmosis & Deionization - English
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Old 03-30-2010, 01:29 PM   #43
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Thanks! Also at my LFS they sell premixed salt water by the gallon. Have you guys heard or seen that before? Is that okay to buy? Whats the disadvantages of that water?
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Old 03-30-2010, 01:33 PM   #44
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People do it all the time. Expensive and no gaurantee they used up to date filters on their RO/DI units. If ya can, test it for phosphates.
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Old 03-30-2010, 03:26 PM   #45
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I just picked up 5 gallons of it for 4.99, i tested the salinity and its perfect so im just letting it run with the heater and a power head I just purchased for 24 hrs.

Also Ive heard that after a while, you dont need to use a overhang filter anymore if you just go with a power head or something along those lines? anyone wanna clear that u for me?
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Old 03-30-2010, 04:30 PM   #46
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Okay it's like this. If you have 1 1/2-2 pounds of live rock per gallon of tank water your LR becomes your filter. The PH is to keep the water moving. In a 14g your weekly PWC replaces the need for a skimmer and also replaces the elements that are used and also removes nitrates. That's it.
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Old 03-30-2010, 04:35 PM   #47
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The powerhead (PH) also provides needed oxygen in the water. Without a PH or filter moving the water, fish die from suffocation.
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Old 03-30-2010, 04:48 PM   #48
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The reason a power head seems to add oxygen is that the movement of water helps to remove CO2 and because of this your water takes on more O2. The same goes for a bubble defuser. The bubble don't add oxygen it removes Carbon dioxide making room for the water to take on more oxygen.
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Old 03-30-2010, 04:49 PM   #49
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Gotcha. Well I have about 12-14 lbs or rock so I dont think im ready to remove the filter, but if I get a skimmer does that mean I dont have to do PWC's? Not that I dont want to or against it im just wondering.
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Old 03-30-2010, 06:37 PM   #50
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No, you still need to do a water change to replace nutrients and stuff that is added with the salt mix.
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