By its general size and appearance. Most Tetras are not long lived fish and depending upon species, live for 3 to 5 years. I would advise buyers to always buy from a reputable breeder if possible. If you can't find a good breeder then use a reputable pet store and after researching the species, buy fish from healthy looking, active schools of tetras that are not quite full size.
needle fish will certainly not work well with neon's, they will murder the neon's
There are multitudes of neon fish, so this question is too vague to answer.
a neon tetra is a fish. It has all sorts of neon colours on its body!
In the aquarium were water, weed, sunfish, snails, and a neon fish.
the scientific name for the Black neon tetra fish is Hyphessobrycon herbertaxelrodi
If the neon is in a tank with other neons then there is a good chance it will grow back. If your neon is in with other fish and larger fish there is a very good chance it will be eaten "Big Fish Eat Little Fish".
no
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
well,the faster the fish swims can give you a clue on age like fast swimmer young fish!the size of the fish compare it to an avrage size then you can find out ur fishs age!
In my opinion neon's and / or tetras.
The official name for them are Neon Tetras.
A neon tetra breaths the same way as any other fish with gills