Some fish show no visible differences in the sexes while in others the differences are very large and obvious. It all depends on the Genera and species of fish and sometimes also the sub species.
can you tell if a fish is a boy or girl by the tail
A girl Betta is dull and not as pretty as the male. But, a boy Betta is colorful and pretty to attract the female mate.
You can tell the difference between male and female fish by a female wouldn't have as colorful gills as a male would or if you still can't tell the female would be a slight bigger than the male
no one
you can tell by the dots or spots on the boy fish and on the girl is just a gold fish colres
yes of course fishies are so totally awesome
Fish have scales. Seals are much larger than fish and have a slippery body and a little face :)
Lyre tail is simply a description of a fishes tail. What kind of fish is it? It will be a Lyre-tailed something.
no one
no a fish has the memory spam of 3 seconds if it tells itself to stop eating it won't remember to do it
Depends on the species, but determined from an opening near the fish's anus.
1.fishes are mostly "schools" (groups of fish) a "flock" is a group of birds. 2.yes they travel together, depends on the species 3.if i did not exactly answer your question please tell me