I was curious as to what salt formulas people are using safely with cephalopods. I have seen examples of instant ocean, red sea, and kent and have been comparing those and a number of other formulas to NSW element concentrations. I take care of several tanks where I raise S. officianalis and S. pharonis and have always used Kent without issue. However, there recent formula change increases several minerals, which along with the kent marine vitamin supplement I soak their food in weekly, I feel may be resulting in ill health among the animals. For me price is going to be far secondary to making these cuttlefish happy, so what are formulas any of you have had success with?