salinity spiked to 1.029 from 1.024

[Nano]

I am giving a water change should I try to lower the salinity during this water change? or over the course of a day or two???

[Wayne]

I would do it slowly over a day or two. You don't want to stress anything out byu doing it too fast

[Aquattro]

How did it "spike" so high?

[Nano]

I dont know! lol evaporation perhaps? I could have made a mistake too though I am new... I have done a 25 percent water change and lowered it to 1.027 tomorrow I will try to get it back to 1.025 does this sound good?

[Brightwhite]

Any chance your adding salt into your top offs?

What size is your tank? That's quite the increase.

[Wayne]

How are you checking your salinity? What size of tank do you have to have that big of a salinity swing.

[Nano]

its only 20 gallons and The last top off I did I saw there was evaporation so I figured the full dose of sat was not required in fact I did less then half! I use a hydrometer by instant ocean. Should I just be adding fresh water for top offs? or very very mild amount of salt water? again guys I am new so I am making cllassic mistakes I'm sure

[Ryan_Lap]

When topping up your tank due to evaporation only use RO. No need to add any salt at all since the salt does not evaporate.

[Nano]

ok thanks I will do this in the future! Again sorry you guys I didnt know and thats why I'm here!

[chopperman]

One thing I learned when using my coralife hydrometer is that if I didn't rinse it out with freshwater everytime I used it, salt residue and bubbles would cause inaccurate readings (Learned the hard way) I have since got a refractometer because of better accuracy.