Kittens fighting

yes, those answers before say it all. I got a kitten named bracket ( I know) and when I brought her home, my 11 year old cat was curious, sniffing and such, but he was fine with her. tghey got along just fine. Then sadly bracket went missing a while later (months) and my neighbor said he saw her in the rd, (she got hit) so I got another kitten named sugar. She did’t get along well with my older cxat (MOO) and he did;t like her. They hissed and such but after a while, (it may even take months) they eventually got along great. Same with my dogs, I got a puppy ( I already had 2 dogs) and her name was lily. My dogs wouldn’t even go in the same room with her, and they didn’t like the change. Your kittens may not like the change right now, but keep encouraging them to get along, slowly! DO NOT FORCE!!! try rubbin a sock on the new kitten and placing it near your older kittens, when they play, sleep, eat, etc. so they get used to the smell( they may not like it at first) but slowly they should get along, try the same thing with the little kitty, ( sock rubbed on older cats, put near 6 wk old kitten) my dpgs get along great now! The 3 amigos!! (as we call them!) ~Carrie~