Yes and No.
They do sleep even though they don't have eyelids to close their eyes!
They will often rest in one spot with slow gill movement and be very still, you will see this most often when tank lights are out and are basically sleeping. A loud noise may startle them and they will quickly move into action again.
They will sometimes wedge them selves in gaps, sleep sideways and even vertical but lying in unusual positions can also be a sign of them being unwell. If they won't move when you disturb them they could be stuck, ill or dead. Upside down is usually death or close to it
Playing games with fish if very diffucult. The best thing to do with your betta is to put your finger on the fish bowl and move it around to see if your betta will follow it. If she does, that means she is hungry. Feed her. Not hungry? Then just talk to your fish, though I must warn you, they might not be very sympathetic. BUBBLES ROCK!!!! EVEN MY DEAD BETTA FISH (Beta, Troy, and Fin) ROCK!!! EVEN MY DEAD GOLDFISH (Max, Elizabeth, and Liz) ROCK!!!!
get rid of it or flush it down a tolette
Do not play with betta fish or u will kill it..The only thing u can do is feed it,and clean his bowl or tank or pond.You can buy items for it but make sure it does not hit them never play with betta u might kill it
it's dead!
Go fish
flush him down the toilet.... then get anthor one if you want
Any dead creature in the water will putrefy and the resultant putrefaction will kill any fish in that water. So yes the dead crab will kill the Betta eventually.
Probably because it's dead and going rotten.
Fish do not normally "float around" they swim. If your fish is floating/sinking then it is probably dead.
other Betta fish and the bigger fish.
Betta fish do not eat fish.
No betta fish are carnivores.