Ok, so what's the magical secret to using Formula 2 correctly?\nSomehow I managed to screw it up. Shocking. I just got some and popped a cube into a container to thaw and when I took it out I was perplexed. It's a solid cube of paste? I've not encountered this with frozen foods before. So I halved it with a spoon and thought, I guess it will "dissolve" or seperate once it hits the water. Nope. The hard mass was immediately grabbed and hoarded by my skunk shrimp. I watched in disbelief as fish approached to try and eat it and he chased them off. This went on about a half hour. He wedged it into a rock on the bottom corner of the tank and guarded it. I finally mashed up the other half cube and put it in the tank so the fish would have something to eat.\nAn hour later my skimmer was overflowing! It made the darn thing go crazy?? Why? What am I doing wrong here?