Hey everyone, Just wanted to put my 2 cents in about Red Sea test kits. I got one on sale (cheap). I'm not happy with it though. The alkalinity test doesn't give numbers, only low, normal, or high. The color matching for some tests (ie nitrite) is rough at best - I've done this test three times now and haven't come close to any of the colors on the card. I know I should just get the Salifert kits. Wondering if anyone likes the Red Sea tests, though.