I always use the digital titrator (same as Greg) for generalized tests where it is required. However I do not perform water chem tests with accuracy of a standard chem lab. It is quite accurate compared to the "drop method & conversion number type tests" (dropper method)previouly discussed by Deb & ewest. My titrator came in the portable water lab.

Deb once you get ich cleared up in an aquarium, new ich episodes come in with newly introduced fish. Whenever you add a new fish it should be quarantined or treated until you know it is "clean". Treatment during quarantine can be as simple as holding the fish in the proper salt concentration for a week or two. This time period is usually the incubation period for the ich cycle. The onset of the ich cycle can be enhanced by elevating the water temp. If you do not do this quarantine step, then you will always be battling new infestations of ich.


aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management