Quick question

[Dimple]

I just recently got a fiddler crab from my local pet store and when I looked more into them I realized they need brackish water. As I'm still new to tanks in general I wanted to know if I have a water filter would it remove the natural salts in the water?

 

[flitabout]

No your filter will not remove salts

 

[Dimple]

Thank you so much