Sounds like it was sick. You would be well advised to take some preventative
action, incase it had some sort for communicable disease. I don't know
enough aboutthe meds to recommend anything, but try adding some salt (NOT
table salt!). Do a large water change and add the salt to the change water
at 1 tsp. per 5 Gallons of water replaced (Only use the volume of the
replacement water!) I have alwasy found this to be a great preventative, and
I add it as a matter of course to most of my tanks. You can buy regular "Sea
Salt" at the grocery store usually in the table salt section. Be sure its
not iodized though. Good Luck
"JEFFREY STREET" wrote in message
. net...
My blue dolphin (been in the tank one week, came with a L.Caeruleus and a
fabulous baby P. Demasoni (sorry for the spelling) sits on the bottom of
the
tank, and this afternoon wouldn't eat with the others, and though as I
watch
him, I do not see anyone acting agressive to him, as most leave him alone.

Help,... he was cool all weekend, but if he isn't stressed could it be he
is
just a bad fish and will die. I have a rusty in my tank that all the
other
fish hate but he is one of the first for food. (Tank is 55 gal with lace
rocks on one corner of the tank)...

Help