Salinity dropping why?

[Zoaelite]

Originally Posted by lastlight

Salt will sometimes migrate to areas of lower concentration (Diffusion). To combat this line the rim of your tank with something saltier than the tank's water. This will effectively contain your salinity.

I'd recommend a MFF or McDonald's Fry Fence.

I personally use the KFC double down, works for a salinity perimeter and nothing beats the angina after eating one.

Unless you have a secret leak there should be no other way for your salinity to drop like that, are you sure your initial measurement was correct?
Sent from my Desire HD using Tapatalk

[Wayne]

Originally Posted by zoaElite

Unless you have a secret leak there should be no other way for your salinity to drop like that, are you sure your initial measurement was correct?

Really the only way for your salinity to go down is if you loose water and replenish with freshwater. If there are no leaks in the tank and no major signs of salt creep, I would have to suspect maybe a incorrect initial reading aswell.

To bring the salinity back up slowly you can just replenish evaporated water with mixed saltwater (1.025) over the next few days. With a tank that small you should be checking salinity a little more often till everything stabalizes. Good luck and keep us informed.

[Reefer head]

Let's see some pics of the 300g fowlr

[ReefOcean]

If you are using a swing arm salanity tester, do you rinse it after testing? If not that maight explain what is going on. You fill a bucket, test several times, dissolving salt stuck in the hinge for the float after the 3rd or 4th test. Then you put is away, salt dries and then you go to test again once, and the arm has slight resistance, thus giving it a lower reading.

[1eyedjyde]

If you have a skimmer on the nano that might be your culprit as it wouldn't take much volume to lower your salinity.