some times the big fish eat the little fish
Well it depends. If your msle goldfish shows signs of being a predator. Remoe the fish immediately.
fish do not stay with the eggs
Yes it is perfectly natural behavior for a goldfish to eat its own eggs and/or fry. That is why you must sepperate the parents from the eggs/fry when you breed goldfish.
If it is as old as a goldfish that can, it can.
Guppies are livebearing fish and retain the eggs until they are ready to give birth to live fry (baby fish). Goldfish are part of the koi family and do lay eggs, some fish are live bearers and some egg layers.
immediately separate the eggs from the bigger fish with a screen. The bigger fish WILL eat them.
Goldfish can not get pregnant. They are egg layers. The female sprays thousands of eggs into the water in the breeding season (spring) and the eggs are fertilised by the males after they have been sprayed out. The eggs then take a few days to develop into baby fish (fry).
Goldfish "spawn" they do not get pregnant because they are egg layers and the eggs are fertilised after they are released from the females body. Goldfish will eat their eggs if they can find them, so either the fertilised eggs or the goldfish should be removed once 'spawning' is completed if you wish to raise some of the young. BTW 1 goldfish spawning can produce many thousands of babys.
The young of fish are known as 'fry' goldfish included
If you mean will a goldfish eat its own fry or eggs then the answer is yes.
Pregnancy is not involved with the reproduction of goldfish, therefore there is no possible way for a goldfish be filled with [possibly] dead babies. Fertilization of a goldfish's eggs occurs outside of the fish's body, and any further development takes place there too.There is a condition in which a female goldfish may get an egg impaction if she does not release her eggs, in this case handspawning the fish(carefully squeezing the fish's abdomen to release the eggs) will eliminate the risk caused by the eggs.
Bettas and goldfish