How many of a salinity drop will kill inverts

[fishywishy]

My tank is currently at 1.027 because of evaporation and I want bring it to 1.024. Is this too much of a drop in salinity for my shrimp and crabs to be able to handle?

 

[Reefahholic]

My tank is currently at 1.027 because of evaporation and I want bring it to 1.024. Is this too much of a drop in salinity for my shrimp and crabs to be able to handle?

Not if you do it slowly. Like over several days, but I wouldn’t bring it down to 1.024. Salinity is the foundation of all the other elements. If you drop it that low, the rest of your elements will fall out of target range and your entire biology will take a hit. Try to keep it at 1.026 or even at 27.

 

[fishywishy]

Not if you do it slowly. Like over several days, but I wouldn’t bring it down to 1.024. Salinity is the foundation of all the other elements. If you drop it that low, the rest of your elements will fall out of target range and your entire biology will take a hit. Try to keep it at 1.026 or even at 27.

So it’s okay to leave it at 1.027

 

[AydenLincoln]

Only a sudden HUGE drastic change will and even then most inverts can handle it but stability is better. If you think about the ocean the salinity fluctuates with rain and evaporation. I’d bring it down to 1.026 because it’s the average ocean salinity and most used/recommended by most people.

 

[Rmckoy]

I’d add a little rodi water to bring it up to 1.026 as a target .
1.027 isn’t bad but fluctuating isn’t good

 

[Reefahholic]

So it’s okay to leave it at 1.027

I would. I’d rather be a little high than at 1.024