what do these mean?????

Question
nitrate/ammonia/nitrite, What does this mean? How do I test for these chemicals also i wanted to know can you put a red tiger oscar in a tank with 30 baby Mollies 8 neon tetras and a snail

Answer
Tahlia:  you could put the red tiger oscar in with all the babies but by tomorrow you would have only the red tiger oscar...  you can take a sampe of your water to an aquarium and get the water tested... its usually free... they will tell you the values... you write them down and  send them to me... dave