Quick salinity question for water change

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Ejostling

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My reef tank salinity is 1.024. I was planning a 4 gallon water change today approximately 32 gallon tank. I heated up my water and that salinity is 1.022. Go ahead or not. Thanks
 
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Azedenkae

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My reef tank salinity is 1.024. I was planning a 4 gallon water change today approximately 32 gallon tank. I heated up my water and that salinity is 1.022. Go ahead or not. Thanks
I would add more salt to get it to 1.024.

Presuming the temperature of the water mixed is the same as the tank and/or whatever measurement device you use auto-calibrates to get the right salinity.
 
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Ejostling

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Because my tank is fairly small and stable, I buy my salt water from the lfs, so I do not have salt hanging around. Going to get some . Thanks again for the quick response.
 
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Azedenkae

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Because my tank is fairly small and stable, I buy my salt water from the lfs, so I do not have salt hanging around. Going to get some . Thanks again for the quick response.
Right, gotcha.

Okay, the reasoning for your question makes perfect sense now.

Well, to be fair if you do a 4 gallon water change with water with specific gravity 1.022, you would only reduce your specific gravity from 1.024 to 1.0237, so not a massive change. Presuming my calculations and general assumptions are correct.

I mean to be fair my water changes are never exact, and every time I top up my tank salinity could decrease by 1.021, so it is not necessarily a massive change. At the same time, I do not keep any sensitive species of live stock, so there's also that.
 
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