Several years. It is more reliable to say that Black Ghost Knives are mature at 15-18 cm (6-7 inches) long.
There are many reasons for fish to die. Your fish, most likely died of old age or you were not feeding it or not feeding it enough food. It could also be a diease. If fungus was growing over the rocks, or the tank, it could be possible he/she died of that.
Surprisingly there are many fish with electric abilities, most of them live in brackish water and it is believed that the electricity is a means of communication.
These fish grow large and are not social animals so unless you have a very large tank I would not advise you to put two together.
According to Tiffany's Table Manners for Teenagers (1989):image showing a fish fork held as a normal fork is held and with the text - "This is the way to hold the fork. Prongs should always be down when the fork is held in the left hand".image showing a fish knife held as a writing penand with the text - "This is the way to hold the knife. Note that it differs from the way the meat knife is held."
it is called a black fish with a gold stripe(:
black ghost knife fish gets nutrients and energy from the food it eat
No.
No.
they can be 49cm.
fish about 5in or 4in lowest
The maximum length of the black ghost knifefish is 40 centimetres
Yes it can
Black Ghost Knife Fish are semi-agressive. They should be fine though. The angelfish should be fine.
Depends what store!
It uses an electrical field produced in the fish's body.
The fish must be small enough to be eaten by the knife. There are also small shrimp (ghost shrimp) which some small knifes will find easier to catch than the faster guppies. As the Knife grows so will it's prey.
The same place every other fish gets its energy. From the food it eats.