From the food they consume.
they get their energy from fish
energy is tranferred from insects to fish in this system by?
The energy for the plants in a fish tank is supplied by Light.
they already normally have when they are born
They eat other fish.
fish food for goldfish
One way is that we get sun energy from the fish we eat which they get the energy from another fish which they get energy from plants also they provide us vitamin D.
No, fish can not sit out in the sun and gain energy, sorry
fish
fish shrimp
it dosent