Ok so before I bought Prime, I was using API water conditioner (which doesn't do half the stuff Prime does). I had noticed my little CT's spread was starting to curl a little. I had just run out of water conditioner, and was going to PetSmart to get Prime. It's been about 1 week and his curling is completely gone!! I highly recommend this product! If your just starting out, and don't know what water conditioner to use, use Prime!!
Sorry if this sounded like a commercial