Clownfish, which salt mix?

[drew4452862]

I am starting up a new setup and my questions are which salt mix should I use? what has worked for you.

what should the gph for a 20g overflow be?

 

[ernieq]

I use instant ocean and it has worked well for me. Are saying your aquarium has a 20g overflow, or is the tank capacity 20g?

 

[Fish doctor]

I have used instant ocean in the past with no problems. You should have no problems with it.

 

[drew4452862]

20g main 55g sump. PVC overflow