What sea salt have you had good experience with

[RuGlu6]

The bottom line is if you have large tank and you do a lot of water changes go Instant Ocean, if you tank is less then 100 Gal go with the good brand like D-D .
It lasts me a year on my 65 gal water change every week 5%.

[badAZZlars]

I've had good success with both IO and reef crystals in my full sps tank. I stocked up on reef crystals at the big als boxing day sale so will be using that for the next year. I can't justify buying the expensive salts when I get good results from the low priced options.

Sure there is a bit of a film on the top of the water when I mix a fresh batch but it really doesn't bother me. I just skim it off before adding the water to the tank.