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#1
04-10-2006, 08:07 PM
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Well.... looks like Im below average. I think I will slowly raise mine to 1.025
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Visit my Gallery http://www.canreef.com/photopost/sho...user=2209&sl=b 150 Gal Deep Dimension Cube, with Model 2 sump/filter, CO2 reactor, milwakee pH controller, auto-top off, 2 radion LED lighting, Vortech MP40 cor internal circulation. 
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#3
04-10-2006, 09:50 PM
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SG topped off at 1.025, and may go as high as 1.026, evap depending. This is not a dramatic change however.
Chris
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No more tanks  - Laying off the ReefCrack for awhile!Cheers, Chris
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#5
04-10-2006, 10:56 PM
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1.023
Im at 1.023 but I dont have a refractometer. God only know how off the old swing arm is.
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#6
04-11-2006, 03:11 AM
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Just wondering, to anyone who knows...why is the SG at 1.025+ prefered?
I'm a fisherman and whenever we have to deliver our product alive, we keep the SG between 1.019-1.021. We dont keep it lower to save on money because we use different salt than aquariums. Our prawns have no problem in the tanks and can live in a plastic fish tote (equivalent of about a 65G tank) for 40+ hours with 150-190lbs of prawns inside. The SG levels and temperature are dictated by the company that buys the prawns because those are the perameters of their tanks. When we measure the SG of the ocean water (taken from approximately 15 feet down) it reads around 1.015-1.018, depending on location of course. Any explanation or ideas? I'm sure its something simple and i'm just overlooking something obvious. -Cam
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#7
04-11-2006, 03:17 AM
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Temperature plays a part in measuring sg and salinity. I don't know how much difference it actually does make though
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#8
04-11-2006, 03:21 AM
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Noj,haven't thought of that question in a while but if memory serves me. I believe 1.025 is the average SG with some places lower and others higher.
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No matter how hard you try, you can't baptise cats.
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#9
04-11-2006, 03:48 AM
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Cam, the value of 1.026 is the average SG of the reefs our corals come from. This value also corresponds to the correct values of Ca (and all other elements, really). Lower salinity means lower everything else (in nature).
I've also tested the water locally and SG is much lower. pH is under 8.0 also, mostly due to FW run off close to land. Can your prawns live in this for a while? Sure. Long term, maybe, but not optimally.
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Brad
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