carey
Aquarium Advice Addict
Looks like they are individual tests. Is there a combination like the API Master Saltwalter test kit.
Salifert of course doesn't offer a kit, and they are quite pricey. I just use it when I need an EXACT number.
Lemme go get a picture of the duncan, its really cool. It was a $10 frag and theres like 5 more heads starting to come in.