Add freshwater with Good salinity lvl?

Reefgirly

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20250706_213230_A14405B5-AC07-4880-8C57-3F097E785CFF.png

Do I still add freshwater for the water that evaporates even if my salinity is in a good level?
Because wouldn’t adding freshwater mess with my salinity?

& yes I know I need a refractometer, it’s on the way.
 

FishTacos2

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Add salt water to the water level that you desire

After this replace evaporated water with ro/di water to achieve the same baseline level.

The level will usually fluctuate in the chamber where the return pump is located…
 

ColorMeGone

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Find a level in your tank that gives you the salinity you want. I keep mine about 3/4" from the top of my rimless tank. Mark it with a small line and as it evaporates you will see it and can top it off with RODI water. It's a pain so I would get a ATO if I were you.
 

Mr. Mojo Rising

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I would wait until you get your refractometer to make changes, that thing is very unreliable IME
 
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Reefgirly

Reefgirly

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Find a level in your tank that gives you the salinity you want. I keep mine about 3/4" from the top of my rimless tank. Mark it with a small line and as it evaporates you will see it and can top it off with RODI water. It's a pain so I would get a ATO if I were you.
I actually just got crayola window/glass markers for this purpose.
 

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