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Old 10-10-2007, 11:01 AM   #21
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As I undrstood, from reading other posts and articles, 1.023 was the accepted "norm" for SG in SW tanks. Am I wrong about this?
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Old 10-10-2007, 11:14 AM   #22
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Not wrong IMO. I believe that you're well within acceptable and preferred ranges. I do 1.025.
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Old 10-10-2007, 11:35 AM   #23
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OK..I'm glad that it's acceptable, but you are well above that SG as well. Is there a reason? Do corals & fish do better in higher SG? I have no problem creeping the SG up little by little till it's 1.025 or 1.026. I just want to know what the benefits are vs. 1.023. I have not found any articles that specifically address what higher or lower SG's mean biologically to the animals.
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Old 10-10-2007, 11:54 AM   #24
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http://www.timstropicals.com/Saltwat...e/Salinity.asp

I've read (forgot where) that reef tanks are higher. Check out the above article I just found.
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Old 10-10-2007, 01:38 PM   #25
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Great info...Thanks. I'm gonna start bummping it up little by little.
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Old 10-16-2007, 01:04 PM   #26
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I just whipped up a 5 gal batch using reef crystals and water from my new RO/DI unit. This batch was about the 50th gal I made with the unit.

SG - 1.026
Alk - 11 dKH
Ca - 400

So IMO, Reef Crystals just do not provide enough calcium. And I dont want to use supplements. Oceanic gives me a 440-460ppm.
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Old 10-16-2007, 01:58 PM   #27
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If you're getting consistent results with Oceanic, then stay with it. I tried it and found it be low and quite variable from batch to batch. It may due to mixing 20-30 gallon batches from a 200 gal bucket. If the particle sizes are not uniform there would be uneven settlement during shipping.
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Old 10-16-2007, 05:41 PM   #28
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Quote:
Originally Posted by usmcmarc
Oceanic gives me a 440-460ppm.
Same here with me. It`s why I use Oceanic.
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Old 10-16-2007, 06:35 PM   #29
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with all the work and money involved in making saltwater sometimes I debate making the 2 hour drive to seattle and loading up a truck with containers of saltwater. At the seattle aquarium there is a hookup that dispenses conditioned Saltwater straight from the Ocean that they use in there Aquariums. It costs 5 cents a gallon. You Put like 40 dollars down to become a member and swipe your member card and it deducts from your account based on how much water you take. The part that stops me is having to buy the containers for transport. And I only go to Seattle like 4 times a year. Id have to load 30 5g jugs every 4 months if only I lived a little closer. You can't get much better than real ocean water.
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Old 10-16-2007, 07:26 PM   #30
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Wellllll.....Real ocean water straight from the ocean is actually a BAD idea. Too many pathogens, and toxins in ocean water these days.

Now...water from the aquarium that has been conditioned...thats a different story...I would do that in a heartbeat. And 5 cents a gallon is so cheap it's insulting. I cant get plain RO water for less than 50 cents a gallon. Thats why I bought my own RO/DI unit.

Too far away though. It would be awesome if it was closer.



melosu58 - In what quantity do you buy the oceanic salt? 200gal bucket? Just curious if you had the same problem cmor1701d mentioned.
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