2 male Bettas can not be kept together. Crowntails are the same species (Betta splendens) the only difference is in the tail shape.
No they live on land
Betas are brown in the wild because some Betas live in mud, and feed off of flys and small insect's. Betas are livebearers. Betas also somtimes eat other fish.
I wouldn't risk it. betas live alone, and most betas will kill company. buy a separate fish bowl, appropriate for the tadpole when it is older, and larger. :)
Neons
no. betas don't get along with any fish, even with other betas. they will kill each other.
They will attack if they feel threatened.
no you dont need bubbles betas can live with out them
No they are not.
green
betas. it relates the responsiveness of the returns on individual securities to variations in the return on the overall market portfolio
Bettas do not mind snails at all. A crab with pinchers would dammage the bettas fins
They are not scared. They attack the reflection in the mirror. Male betas are aggressive toward other male betas, so when they see there reflection, they flare up and try to attack the "other fish."