So... because my LFS carries Sera products, I acquired some of their Shrimp Mineral Salt. Haven't measured anything yet, but put enough to raise 5.3 gallons of water to Gh 6.5 and it dissolved instantly leaving a solution that looks like clear water. Given that I've been using Seachem Equilibrium, which doesn't want to seem to dissolve much and makes a brown cloud in concentrated form, I am encouraged. Will update with numbers once I make the water change.
As jayc has mention, do check if you are allowed to import them into your country, I think Australia is ok as long as you applied for the paper work to import them, but do check first.
But this option are for those who are after good quality shrimp with a guaranteed of pure bloodline.
You can contact them through this email, they accept Paypal with a addition 7.5% on top, their Paypal account email is different, but email them first for relevant detail as they may differ from mine.
YU CRS CENTER CORP. <email@example.com>
For me they cost with shipping and Paypal fee, its still cheaper them in Hong Kong.
I will have to delay this purchase, ADA and the CALs Black Earth Premium substrate are limited now, most places does not have stock, and no delivery date.
See, and I thought you meant weak solutions were just as susceptible. So I should pre-mix my 7 gallon tank when I get the RO water and it will last the 4 weeks or so that I use it to change water just fine. That's what I was after. Apparently the Salty Bee guys think the same. Makes sense.