The shape of the body. Females are usally rounder than a male tinfoil. Females are also bigger.
If a marine fish swallows a tinfoil , the tinfoil will get stuck in the marine fishes' throat.
8-10 years
Very large peaceful fish. i would sugguest tinfoil barbs.
yes because tinfoil has poison in the tinfoil and can kill you.
Most fish are incapable of changing gender.
The noun 'fish' is a common gender noun as a word for something that can be male or female.The noun 'fish' is a neuter noun as a word for a food substance (a thing that has no gender).
The fish have the same genders as we do, male and female
*The tail has nothing to do with knowing the gender of a cat. Look for the male and female genitalia. It's different from knowing the gender in beta fish, because in beta fish you can know by its tail but not in cats.
They should be OK together if they are about the same size and you have a large tank (Over 50gals) set up. If you have a pair of Oscars and they decide to breed you will have to remove all other fish.
In English there are no masculine or feminine forms. English uses gender specific nouns for male or female. The noun 'fish' is a common gender noun, a word for a male of a female. There are no gender nouns specifically for a male fish or a female fish.
Other similar sized, semi agressive, tropical fish. Tinfoil barbs, green severum, tiger barbs, redtail black sharks, rainbow sharks, id sharks, etc.
Yes.