Not always. Goldfish are largely peaceful, but... They have ravenous appetites and eat aggressively, so tankmates may not get enough food and/or may get hurt in the process. They foul a tank with copious amounts of waste (poop), so tankmates may not be able to survive the more toxic environment. They get big, so tankmates and decorations may get broken or injured. All of these conditions can be mitigated with planning and proper care and you can enjoy your goldfish for years and years (they can live up to 25 years with a reported world record of 41).
Well, you gotta chose fish that live in the same conditions as the goldfish such as Koi. You could also do some researching and find out too.
Goldfish urine is toxic to other fish, as well as itself.
Goldfish lay eggs when water temperatures and other conditions are right for them. They do not give birth to babies. Goldfish as well as many other fish species spawn in the spring.
fish and can live in temperatures ranging from 40°F - 90°F
Weather loaches (dojo) are a good choice, so are related fish like Kulhi loaches. plecostomus catfish, coreys and other bottom dwelling fish work well. We have had some honey gouramis with our goldfish for years and no problems. Most knowlegable pet store owners should be able to hel you find some peaceful fish that can live with goldfish. Avoid chichlids they will usually beat up on goldfish.
The only fish I know of that is called a celestial is a type of goldfish. If that is the case then most other fancy goldfish would be OK as companions provided the tank is large enough. A single goldfish needs at least 10 gallons of water to live reasonably well.
Goldfish should be fine with other non-agressive coldwater fish. Be wary of fin-nippers as well, especially if your goldfish are the longer-tailed varieties. If you have fancy goldfish, especially the types like telescope eyes with poor vision, be sure your other fish are not so much faster than your fancy that it can't get to the food before it's all gone. Goldfish do not mix well with tropicals as the temperature requirements are too different.
Well fish such as goldfish go in cold water and fish such as angel fish (tropical) go in warm water. Try not to mix them up as one fish may not live. If you would like to get goldfish don't mix them with fantail fish with 2 split tails as the goldfish will attack. So keep fantails with their own kind. Hope I helped.
Here are some facts about goldfish 1. goldfish can live for many years some can only live up to 25 years. 2. there are severl breeds of goldfish. 3. goldfish talk to other goldfish by there gurlls. 4.goldfish can talk to humans but you can tell
Well, Comet goldfish are also known as feeder fish. They can live a very short lifespan or a one that lasts about 2 years. They are hardy fish and are meant to be put in ponds like koi are. These fish are related to koi. The fish can grow to about a foot long if they are properly taken care of. You can buy them at your local pet store for about 20 cents. The best way to keep these fish alive and well is to buy them from a trusted fish dealer. These fish can be fed to larger goldfish. They can also start the nitrogen cycle that takes about one month.
I imagine you are asking if you can keep goldfish with other freshwater fish. And the answer is; yes and no. Most freshwater fish prefer to be at a higher temperature (around 80F) whereas goldfish prefer around 65-70F. It usually doesn't work out very well, but it doesnt mean that its impossible.
Black moor fish mix well with other fancy goldfish, but as black moors have poor vision they would be better with other poor vision fish like telescope goldfish or bubble eye as not to have to compete for food finding.