A goldfish swimming with its top fin pointing downwards may be a sign of a swim bladder disorder, which can affect the fish's ability to control its buoyancy. This could be caused by overfeeding, poor water quality, or a bacterial infection. It is important to monitor the fish's behavior and consult a veterinarian or aquatic specialist for proper diagnosis and treatment.
Goldfish are meant to live in cold water, not the warm water in a tropical aquarium. This is a huge reason why goldfish and tropicals shouldn't be in the same tank.
Probably the ph levels
It flows downwards because it is cold and cold air sinkse. The most important reason why it flows downwards is that dry ice is made of CO2 / carbon dioxide which = 1.5 times heavier than the air that we inhale.
No goldfish would prefer to have a lower temperature than any type of tropical fish, however some goldfish can withstand higher temperature if they are slowly acclimated to it! But in the long run goldfish would be happy with other goldfish and tropical fish with tropical fish... there is a reason you don't see the goldfish with the tropical fish in a good aquatic store.
No. But if it is shedding for some strange reason, that means it has a body slime fungus disease.
There is no size requirement for a goldfish to be mature enough to breed. The reason I say this is because so very many goldfish are so badly housed and treated that they may become fully mature but only a couple of inches long. Goldfish can usually breed within a year from hatching if they are well looked after.
Goldfish have a layer of slime on their bodies, it is their protection against disease and parasites and so it should not be damaged. Handling or stroking them is not smart simply because of that reason. Obviously they should never be stressed out by removing them from the water unless there is a jolly good reason to do so.
Sure, why not? No reason not to.
Yes, no reason not to.
no goldfish cant be kept with tropical..the water conditions are not suitable temp, bacteria etc..i have tried it before and it wasnt a success....theres cold water and tropical fish for a reason.....also another reason is that goldfish may seem to accept the warm water but after a couple of weeks you will have a death or a malformation in your tank...hope this helps
The same reason you run more actively with air in the atmosphere. Without air, and therefore oxygen, you and the goldfish will suffocate, making it difficult to swim or run.You take in oxygen through your lungs; the goldfish takes in oxygen through its gills.
As far as waste producing, this is probably a toss up between a goldfish or a plecostomus. Both produce a high volume of waste, and it's for this reason that hobbyists recommend larger tanks for goldfish.