Oh boy, this is a hotly debated topic I've gone back to Instant Ocean. It's the one that has worked for me for 20+ years and the one I think I'm going to stick to from here on out. I've had mixed results with other salts, though it's very hard for me to determine whether they were the fault of the salt mix or something else.
Thank you Len, Im going to save and set up an r/o unit to start makeing my own. my concern is cal., alk., and mag. So, i am looking to get some advise. and thank you for yours.
I've used 3 different brands over 9 years - IO, reef crystals, and Tropic Marin. I have to say that tropic marin is by far my favorite and the one I've had the best results with