It is not necessarily "Fin Rot" but it is a sign that you are not looking after the fishes water properly. The basic rules for keeping fish sucessfully are as follows. :- 1 inch of fish must have at least 1 gallon of water. :- Every tank must have a permanently running 'cycled' filter. Every tank must have at least 50% of its water replaced every week. If you start off right now with a large water change, and then stick to the above rules your fish may recover.
yes, goldfish love duckweed! I wouldn't make it their primary food, but its a good snack, and healthy for them. It's a good supplement to high quality goldfish food.
Give it a good home, feed it, and change its water
No you should not treat an infected goldfish with healthy ones. The infected fish should be separated until it is healthy again and the remaining fish should be checked regally. Any medication you give an infected fish can harm any healthy fish.
They should do, but they can be a little less healthy, as they aren't bred to last that long. That being said, the world record for the world's biggest goldfish came from a fish bait shop.
Depending on what your sick goldfish has, it will either be specific to that fish, which you should place in a separate tank to treat, or it's something that will spread to other fish in your tank, in which case you will need to treat them all.
Very dark, all the time, but truthfully it isn't healthy for the goldfish to be subjected to such conditions and it is just plain cruel to force a goldfish to stay in a dark room all the time.
no what sort of question is that just feed it fish flakes it keeps it healthy and happy
It probably will, but as long as it is alive and healthy don't worry about it.
They will live to be happy and healthy fish just as long as you take care of them.
Yes, being brown in color does not mean a fish is unhealthy. Goldfish that are brown in color are referred to as "chocolate". These chocolate fish are relatively rare; you are lucky to have one.
No, however, many do have the capability to become quite large if given proper care. Common goldfish, and those with the normal/natural body type become quite large, but need a large area of water to attain their full potential (a pond or very large aquarium). Fancy varieties such as the fantail, ryukin, moor and those with an egg shaped body tend to be smaller than their more natural counterparts, however their are exceptions to the rule such as "Bruce the oranda" a huge fancy type.If you want large, happy, healthy goldfish, they do best in a large aquarium for the fancies and an outdoor pond for the hardier normals/comets. 75L(20G) of water is the minimum per adult goldfish. Given these circumstances, the fish will live many years and grow very large.
Goldfish have a big red eyes because it could be do to its condition or because it could be getting sick also poor hygiene and no proper care so observe and keep it healthy