Sorry Shelley for all the Hijacking
I've just mixed some IO NSW and will test it tomorrow
I'll grab a couple Seachem kits while I'm out to compare to my Elos ones
I'm not going to waste money on the Seachem Mg kit though ... at least not at this point
Even though it's not the point of your thread, I'll report here for anyone who's curious
So, I know it hurts you to do big ones but, are you going to do a WC to get your tank back inline ?