as long the babies is bigger than the other same species mouth.
Fantail fish usually have four mates.
Because they like each other:]
It depends on what you say on getting along. Sometimes males will fight other males over a female and sometimes they may feel to cramped in their tank. If a fish is chasing another and tearing up the others fins, they may be telling each other they want to spawn.
in december
if its a fantail gup. yea tetras and gups go together
round about 10 dollars!
either get a normal gold fish or preferably a fantail goldfish
It is in the Spring and goes on to part of the early Summer.
Goldfish are peacefull fish and do not normally fight with one another.
No, they can not. Fantails are goldfish and goldfish like temperature from 63-750 . And no goldfish can not be with any tropical fish. It can only be with other goldfish they are likely to nip a little to pick on who's weak but it is not a problem.
I think you mean "Fantail" and the answer is goldfish can see no better or worse in the dark than most other fish. They are normal in their light requirements.
I've had one fantail for the last 4 years. They are a difficult fish to keep as they have ongoing swimbladder problems and pick up internal infections very easily. Do not even contemplate on putting 4 of them in a tank smaller than 150 litres. They need a lot of room and I only have one, and its in a 112 litre tank with 3 other large type coldwater fish. If you have not already bought these fish, I personally would suggest considering different fish. They are hard to keep and are subject to bullying by other fish. Hope I've helped!