Oh riparium, why do you vex me so? I mineralized the soil for 5 days, sifted it, mixed it with clay, and then left it in the bottom of the tank for a day to sit before planting a red tiger lotus, a java fern, and three corkscrew valances, then added a well rinsed flora max cap, and water (slowly and along the glass wall!). And the result? The plants all uprooted themselves and the water is super cloudy, even after a water change. I’m not deterred, and have no doubt all will work out in a a few days, but I firmly believe in sharing the bad with the good. Cloudy water, I hate you!!! The horror….the horror…
tales of a plant geek 
I feel your pain. Sometimes, trying to plant freshwater plants it’s a pain in the butt.