Clorox Pool&Spa XtraBlue Algaecide 40 oz

My pool water is clear but I’m having a hard time killing the allege that is on the wall. Will this take care of that?

Is this safe for saltwater pools?

Can I use this in our coleman above ground pool?

I am looking for a product to prevent mustard algae. How many ounces of this would I need each week per 10K pool gallons?