Post up the answers to these Q's when you get a moment, hun.
Ammonia Level?
Nitrite Level?
Nitrate level?
Ph Level, (If possible,KH and GH)?
Ph Level (KH/GH) out of the Tap?
Brand of test-kit used? (strips or drops?)
[*]Tank size (How many Gals) and How long has it been running?
[*]What is the name and size of the filter/s?
[*]How often do you change the water and how much?
[*]How many fish in the tank and their size?
[*]What kind of water additives or conditioners?
[*]Any medications added to the tank?
[*]Add any new fish to the tank?
[*]What do you feed your fish?
If it's a water problem, we'll be able to help more easily once we have some bakground info. You can copy and paste and add your answers to the side of each Q.