Saltwater stingrays would never come in contact with neon tetras, and if you were to try to put them in the same tank then one would die because it would be in the wrong type of water. So, saltwater stingrays do not eat neon tetras.
On the other hand, there are freshwater types of stingrays. Those stingrays are able to live in freshwater and require very similar water temperature as the neon tetra. But, freshwater stingrays have a venomous stinger, and there is a risk that they could breed and populate the local lakes and rivers. That poses a great danger to people who use the lakes for recreation. So, in the United States it is usually illegal to buy a freshwater stingray. So, freshwater stingrays might eat neon tetras, but its illegal to obtain them, so you probably wont ever have to worry about your neon tetra being eaten by a freshwater stingray.
yes, but the only way they could eat them is if they're really small
any time it don't matter
When they go to the top and don't eat and have trouble swimming straight
No, the Siamese fighter shouldn't bother them.
They often eat stingrays, small fish and crustaceans.
Assuming that you are referring to neon tetras, there are several brands of commercial "Tetra Flakes" that can be bought at nearly every pet store. I believe that there is also a pellet version of "Tetra Flakes".
angel fish can eat neon tetras is the simple answer, but i have angel fish and neon tetras in the same tank and the angel fish does not bother the neons, although this may be because the angel fish is not full grown yet so it is a 50% chance
ummm yes it should but should be fed daily i think that's what i think
no they do not any type of algae eaters only eat algae that has grown on your tanks glass
yes. a neon tetra can live alone but all fish get lonley so on the safe side you might want to buy another fish. and make sure that the sex is diffrent or the male will try to eat the other male.
This is a tough one. Your tetra's life is in jeopardy here. It might and might not.
Crabs are scavengers; they will eat stingrays if the stingrays are already dead.