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Old 08-25-2004, 11:50 PM   #1
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Water change and Salinity

I am about to do a 10-12 gallon water change in a 125....I am doing smaller water changes more often...My salinity is 1.021 right now and want to get it to around 1.025. Can I put reaplcement water into the tank after taking out the 12 gallons with the salinity being 1.025 as long as the temp matched the tank? Or do I need to add replacement water that matches the tank water and then add top off water with salt in it to bring it up?

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Old 08-25-2004, 11:59 PM   #2
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I am sorta in the same situation. My Salinity is at 1.022. I want to gradually increase it.
Over a few days as the water evaporates I hit 1.023. Then I am going to top
off with 1.023 RO SW. With regular water changes and top offs I am guessing I will hit the desired salinity level.

Personally I want stay in the 1.023 to 1.024 area so if I have a lot of evaporation I wont go into an unsafe level. Assuming 1.023 an 1.024 are stable.

Lets see what others say

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Old 08-26-2004, 12:03 AM   #3
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As long as you don't raise it by more than .001 per day you will be fine. So you plan is sound or even conservative.
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Old 08-26-2004, 10:32 AM   #4
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I suck at math, but like Kurt, I think your plan is definitely safe.
Former advisor and planted tank geek...life's moved on though.
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Old 08-26-2004, 11:33 AM   #5
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Take it up little at a time, every week when you do a water change bring it up 1
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change, salinity, water change

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