First thing you need to check for is if the fish's scales are sticking out in a manner that is called pineconing; if this is the case, then the fish has dropsy and needs to be treated.
If it's a constipation issue, then you can feed your fish cooked de-shelled peas for a few days to help clear the constipation.
pond
yes
The goldfish will eat the mosquito's larvae before they can leave the pond and fly.
This is a literature question not a goldfish one.
no the goldfish would it the tadpole
goldfish
Year round, but especially in Spring for pond goldfish.
Goldfish can survive in a pond without a pump, but it is important to ensure that the pond has enough oxygen and is properly maintained to support their health and well-being.
not if it is your pet. you have to go to the oet store for certain pet food for goldfish
snails
Yes they can
usually cats