QUOTE (lakshwadeep @ Nov 19 2009, 12:31 PM)

+1 especially since most marine salts are good to use. However, I will say stay away from test strips and Tetra or Red Sea tests. The cheapest reliable test kits are from API (e.g. their saltwater master kit). "Best" test kit is also subjective depending on the desired precision.
Don't get the API Reef kit though it doesn't have ammonia or nitrite tests. I have the strips but only use the to check up on things between normal tests.