HELP!! PLEASE

[philip1993]

one of my goldfish has been sitting at the bottom of the tank for 4 hours and i dont understand why???
all the other fish are fine.
can someone please help!

 

[kelly82]

please can you give detail of your set-up, tank size, filtration, inhabitants, cleaning routine etc.

 

[Rbishop]

Current water readings...ammonia, nitrite, nitrates..?