Add freshwater with Good salinity lvl?

  • Thread starter Thread starter Reefgirly
  • Start date Start date
  • Tagged users Tagged users None

Reefgirly

Reef Girl
View Badges
Joined
Jun 3, 2025
Messages
192
Reaction score
143
Location
South Carolina
What state or country do you live in
South Carolina
Rating - 0%
0   0   0
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.
 
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…
 
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 would wait until you get your refractometer to make changes, that thing is very unreliable IME
 
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.
 

TOP 10 Trending Threads

WHEN NUISANCE ALGAE OR CYANO FIRST APPEARS, WHAT DO YOU DO FIRST?

  • Manually remove it and observe

    Votes: 9 21.4%
  • Retest nutrients and other parameters

    Votes: 9 21.4%
  • Adjust flow or lighting

    Votes: 1 2.4%
  • Reduce or change feeding

    Votes: 0 0.0%
  • Add or strengthen the cleanup crew

    Votes: 6 14.3%
  • Improve filtration or nutrient export

    Votes: 2 4.8%
  • Use a targeted treatment

    Votes: 0 0.0%
  • Wait and let the tank find its balance

    Votes: 12 28.6%
  • Phone a friend...

    Votes: 0 0.0%
  • It depends (explain in the comments)

    Votes: 3 7.1%
Back
Top
Home
Post thread…
Market
What's new