Removing water while adding sand?

[Glass Algae]

Hello reefers!

I have a dumb question but I'd rather ask than not!

So I am needing to add a bit of sand to my established 1.5 year tank. I have the sand on its way, Carib sea black arag (I know I know I regret it but I'm stuck with it for now cause I'm not doing a whole swap)

I plan to rinse it and add a bit to the corners of the tank every water change till I have the amount I want.

Now my question is while doing this and adding to the tank I'm assuming the water line will go up and as I am probably about as high as you'd like to go on a Fluval 13.5 so I will need to remove water. Is this just as easy as removing some water from the tank till I have the desired level again? Or will this Flux my salinity and there's a better way?

Sorry if this comes off as a dumb question it's just bugging me so I have to ask.

 

[Spare time]

I would just remove a gallon or so and go from there. Sounds like your plan is fine. It won't affect your salinity or anything like that

 

[Glass Algae]

I would just remove a gallon or so and go from there. Sounds like your plan is fine. It won't affect your salinity or anything like that

So once I put sand in there let's say the water line raises an Inch above my mark, removing the water down to that mark should keep everything the same? Ty!

 

[mfinn]

If it were me, I would remove a gallon ( even a half gallon will probably do) of water, and save it. Don't dump it. Add the cleaned sand and refill with the saved tank water to your level line.
Do this each time you want to add sand.