Fighting or breeding?

[Full3R]

My goldfish which ive had for about 3 years roughly have started to chase each other and nip at each other constantly, i also had three small golds int here that they are also doing this to, whats going on?

[William]

Could be breeding. Do you se any white spots on their heads?

[Full3R]

One is a calico so i cant really see much more then the already white head and the red cap shows no white spots

[William]

Ok. well it still could be breeding time. I don't see any other reason for this behaviour to start all of the sudden.

[Full3R]

theyve stopped noiw but will start every now and then and it will go on for long periods of time