Not necessarily as lots of snails float from time to time. Pick it up and touch the foot with your finger and see if it reacts.
The best way to tell if a snail is dead is to smell it.
It is either well trained or dead.
Dead or dying
Because your goldfish is dead.
They need it for when they come on top of the water
Fish do not normally "float around" they swim. If your fish is floating/sinking then it is probably dead.
It was formed by dead fish floating to the top to make an island.
Its Dead. When it floats up and the gills are not moving and breathing for sure it is dead
Install a floating pool skimmer
ice floating on top of water because water has more density than ice.
True
If it's floating on it's back up at the top of the tank, it's dead. or if it's stuck in or under something it will most likely die.
It is probably a problem with the swim bladder - usually due to poor water quality or overfeeding (which also causes poor water quality.) Try changing half of the water, and reducing feeding frequency. Good luck!