Proteins so there body muscles can expand and lift more. Dairy for bone support.
Sorry we do not know what you mean by "tipe" or "pepel" these are not English words.
they eat frogs, worms and ants
they eat crill
Your question cannot be answered because you did not tell us who "they" are.
food
They don't have territory
They do, actually. Most species eat insects.
lots and lots of iron :) lots and lots of iron :) lots and lots of iron :)
they don't bring food, they just eat what ever they can find.
Yes. Absolutely. If the food is limited (a limiting factor), then of course the fish will compete to survive. If this is the case, the larger fish will usually eat the food, and the smaller fish will go hungry and eventually die.
No. There is an abundance of grass and other plants which they both eat. Neither one of them must compete for their food.
Different snakes have different dietary requirements, so ratsnakes would not compete with animals which do not eat rats. Some snakes eat insects, and some eat other snakes. Some snakes eat eggs. Depending on their diet, snakes compete with certain birds, mammals, amphibians, and other reptiles, and sea snakes compete with fish and other sea creatures which eat the same prey as they do.