07-08-2009, 03:08 PM
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#1
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Shark
Join Date: Mar 2009
Location: Aurora, CO
Posts: 1,087
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salinity?
why do most companies recommend salinity between 1.021 and 1.023 when natural sea water is 1.026?
what do you guys keep yours at?
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Don
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07-08-2009, 03:31 PM
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#2
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Son of Jor El
 
Join Date: Jul 2008
Location: Springfield MO
Posts: 4,615
Reviews: 52
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There are some regional variations in salinity as well as thermal and depth gradients, so you can find several salinities in the ocean. I try and keep mine around 1.025. I'm sure it varies a little, I probably only check in monthly. I try to mix my water change water to 1.025 and the tank rarely deviates more than .001 from that.
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Jeremy http://www.thereeftank.com/forums/f7...ef-119089.html
Did I ever tell you about the time Brasky went hunting? Well anyway, Brasky decides he's gonna hunt down all four members of the Banana Splits. He stalks and kills every one of them with a machete. They all beg for their lives, except Fleagul.
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07-08-2009, 03:39 PM
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#3
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Big Fishy
Join Date: May 2009
Location: phila
Posts: 833
Reviews: 20
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I try to keep mine around 1.025. but not sure why companies recomend low salinity. Im not sure if this is true or not but i heard one lfs say that a lower salinty would help to keep fish free from disease. i dont buy it has some one else heard that.
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i never clam to be the best spiller 
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07-08-2009, 03:43 PM
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#4
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Little Fishy
Join Date: Mar 2009
Posts: 171
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I also keep mine around 1.025 to have room for water evaporation and what not.
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07-08-2009, 03:51 PM
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#5
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Son of Jor El
Join Date: Jul 2008
Location: Springfield MO
Posts: 4,615
Reviews: 52
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There used to be a thought that keeping salinity around 1.019 constantly would prevent ich and pathogens from the water. It doesn't. Over a long time it can possibly damage fish kidneys. The main reason LFS still keep it low is salt is expensive.
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Jeremy http://www.thereeftank.com/forums/f7...ef-119089.html
Did I ever tell you about the time Brasky went hunting? Well anyway, Brasky decides he's gonna hunt down all four members of the Banana Splits. He stalks and kills every one of them with a machete. They all beg for their lives, except Fleagul.
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07-08-2009, 03:51 PM
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#6
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Shark
Join Date: Oct 2008
Location: Long Island NY
Posts: 2,266
Reviews: 108
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I normally keep my tank around 1.024. Fluctuations in salintiy do not keep me up at night. As long as its gradual, I figure the fish are fine.
Here's something I found interesting, I was just in the Caribbean and I brought home some water. It measured 1.028 with my refractometer.
I was thinkng of raising my salinity a bit.
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07-08-2009, 03:56 PM
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#7
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Little Fishy
Join Date: Feb 2009
Location: NJ
Posts: 473
Reviews: 90
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As others have posted its an old thought that it would be better for the fish. I believe it was a fish only type of thing. Reef tanks are recommended to be at 1.026.
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Matt, 65 g reef tank 
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07-08-2009, 03:56 PM
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#8
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Big Fishy
Join Date: May 2009
Location: phila
Posts: 833
Reviews: 20
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Quote:
Originally Posted by jenglish
There used to be a thought that keeping salinity around 1.019 constantly would prevent ich and pathogens from the water. It doesn't. Over a long time it can possibly damage fish kidneys. The main reason LFS still keep it low is salt is expensive.
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that makes more sense to me
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i never clam to be the best spiller
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07-08-2009, 07:18 PM
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#9
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College Reefer= Broke
Join Date: Feb 2007
Location: Middle town KY
Posts: 1,487
Reviews: 24
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i keep mine around 1.025
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~TJ~ 
12g Aquapod 
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07-08-2009, 09:44 PM
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#10
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REEFer In Progress
 
Join Date: Aug 2008
Location: La Crosse, WI
Posts: 1,294
Reviews: 6
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1.025-1.026!
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Tanks for looking!
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07-08-2009, 09:47 PM
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#11
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Mantis
Join Date: Dec 2008
Location: pa
Posts: 1,672
Reviews: 19
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1.026
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07-08-2009, 09:58 PM
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#12
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Little Fishy
Join Date: Apr 2009
Location: cincinnati
Posts: 111
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1.026..holla
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07-08-2009, 09:59 PM
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#13
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This Space For Rent!
Join Date: Dec 2007
Location: Kansas City, MO
Posts: 2,213
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1.025 here...when I've lived in coastal locations the SG of NSW was always 1.026 spot on...I know there are some variances around the world though.
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125 Reef + 55 Gallon Sump + 10 Gallon Frag Tank + 24 Gallon Aquapod Nano Reef + 24 Gallon Aquapod Nano Reef + 24 Gallon Cardiff Nano Reef
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07-08-2009, 10:08 PM
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#14
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Big Fishy
Join Date: Jun 2008
Location: Athens, GA
Posts: 544
Reviews: 26
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1.026
I do my best to keep it at that level. Personally 1.024-1.026
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07-09-2009, 07:13 AM
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#15
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I've got the REEF rash!
Join Date: Nov 2004
Location: New Jersey
Posts: 34,178
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1.024 - 1.026
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Tim 
