Serpae Tetra's are red with a black dot on their side.
Red phantom tetras are similar in appearance to that of the serpaes but their dot bares the resemblance of an eye.
Rummy nose tetra's also are red and black in their coloration. The rummy noses have a red dot under their eye and a black and white checkerboard pattern on their tails.
There are a few but most likely if it was in a pet-store it was a black molly.
I think you may be refering to a red tail shark but more info would help.
no they are not TROPICAL FISH NO NO NO BLACK ANGELFISH IS
Mollies and black bettas.
yes
A black & orange fish.
Yes, all fish have gills, including fish from the tropical regions of the earth.
There are millions of tropical fish in the tropical oceans. But they are all marine fish not freshwater fish. Freshwater tropicals can not live in saltwater.
No, all fish are vertebrates.
check out this website, it has all the breeds of tropical fish. www.justtropicalfish.com/A-Z_Common_Name.html
some names/breeds of tropical fish are mollys a larger fish from a range of courloursguppies smaller fish but males hane large back fins neon tetras small blue and red fish tiger barbs black and orange can be agresive sword fins a same size as a guppie but males have longer tales at the end then females fighting fish agresive but beautiful fish coulours are red and blue angel fish small or large can be agresive colours range gouramies larger thin fish usaly white or green and purple strips calm fish depends on the breed
All species of tropical fish could be found in the warm seas around the equator.
Most tropical fish live in the ocean, but some do live in freshwater.
i have a guppy and two black mollies in the same tank,and they get along perfectly fine so far.but sometimes,you get the occasional aggressive molly and it might attack your guppy. you should also ask your local pet store to see which fish can get along and which can't.