Mixing Saltwater 1st Time

[StevieGM]

Mixed my first batch of salt water and I have a question.



I mixed 16 gallons in a 20 gallon barrel and it smells a little strange.



I used reef crystals and 2 power heads a heater and ro/di water.



I left the lid closed on the barrel.



Got reading of 1.025 at 78 degrees



My question is why does it smell funny?

 

[Rick.45cal]

Hmmm, describe the smell.

 

[StevieGM]

It doesn't smell organic so I am wondering if it is because a new barrel