Stupid mistake

I made a dumb mistake and bought an amonia test kit for Fresh Water tanks. Is there a difference that anyone has noticed between the two?
 
i looked around on their site and couldnt find any info either way. i havent used any Red Sea kits myself either. but i would bet that you could use it in SW but the water sample will turn really cloudy and be near impossible to get a real accurate reading. is it possible to swap it out from where you got it??
 
Is it one that goes from clear to yellow, then no. It will not work.

If it goes from yellow to green, then yes. It will be fine.
 
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