Saltyshrimp remineralizer not dissolving?
I have been using saltyshrimp GH/KH+ to remineralize RO water for my shrimp tank. I bought a large container of it, but I put some into a smaller container for weekly use so that most of it is protected from constant air exposure. I am now down to my last 2-3 gallons worth of the powder in the small container, but I have run into issues.
First, when I opened the small container I noticed the remaining powder was wet. It was very damp too, some of it was like puddles of goo. I added it anyways and left it for about 10 minutes to dissolve. I use 1 gallon milk jugs to change water so I even shook it up to help it dissolve. Once the TDS was right and had stopped changing I started to pour the water into the tank but there was a lot of dust still floating around in the water. I freaked out and stopped pouring but there was a lot of this dust all over the tank. I have not noticed any ill effects and it seems to have gone away. In the milk jug, however, there is still a lot of undissolved material. There has been no change in TDS in the tank or in the jug since this happened.
Anyone have experience with this?