Rather than give you "species' I'll give you "Groups of fish that contain certain types of species.". Good commonly available fish usually available at the local pet shops. Tetras, Anabantids, Dwarf Cichlids, Rasboras, Livebearers, Catfishes, Algae eaters, African Cichlids and South American Cichlids. All the above are tropical and some are very specific in their water parameter requirements.
Many different species of fish are used as 'feeder fish'. Some are egg layers and some are livebearers. If you say what the species is you will probably get an accurate answer.
They can, but only closely related species can do that naturally (such as some poeciliids).
Different species require different methods to determine if the fish is male or female. Usually, the female is larger and rounder than the male. Some species have different shapes of fins. Some species have different colors. Without knowing what species you are trying to identify, it is difficult to give a definite answer.
"Fish" is a general term covering lots and lots of different species. Some of those species are nocturnal, others are diurnal.
Different species different expected lifespan. Some fish live for a single season others live for many years.
Different species prefer different foods. Some are vegetarian, some are carnivores and others are omnivorous.
Different species of fish have different numbers of chromosomes. Try asking for a specific species of fish and someone will help you.
Because most fish species live longer than a year. Therefore, in a healthy fish population fish of different ages and different sizes coexist.
Yes, some fish do experience orgasms during reproduction. This can vary among different species of fish.
There are so many species of fish and they all differ. There are some in which there appear to be no differences and others that are so different they look like different species. If you define the species then I may be able to tell you how to sex them.
There are over 50 different types of species of flying fish. Some of these species are harmful to other animals, fish, and insects. Other species of flying fish are nice to other animals and cause no strife or harm.
No, but some species of fish have been nicknamed Lover Fish. It is inadvisable to refer to them as such though since the nickname refers to many different fish.