The same way you know you are who and what you are. They have evolved to do it just as all other living creatures do it. Why should fish be different?
Fish that are the same species
according to my calculations all fish are not the same because they aren't all the same kind of fish, don't do the same stuff and function differently.
depends on the FISH. if they saltwater fish, then you put salt water in the aquarium, same thing for the freshwater fish. if you dont know what kind of fish it is, look it up.
no a tetra fish has a shiny streak
They are both the same shape but different sizes
the one is weak
A male guppy can be in the same tank with its own kind and/or with almost all peaceful fish smaller than 5 inchs.
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.
You must look into each individual fishes needs. You can only pair fish that need the same water temperature, and that won't attack or stress each other out. So look into the fish you want, check their needs (water temp, ph, environment) and then look up if the fish you want are aggressive, like having other fish around, what kind of fish they like, etc.
Only five cards are used to make up a hand. you cannot have three of a kind and two pairs in the same hand. You either have a full house (three of a kind and a pair), three of a kind, or two pair. The full house beats a three of a kind and the three of a kind beats two pair. If two players have three of a kind, the highest three of a kind wins.
in math ,algebra, arithmetic
Coz they're ugly as [uncensored]