I have three dogs. 2(m), 1(f) and 8(f) months.
The two oldest can fight from time to time, but it is rare and manageable.
8 month old started guarding her food. The others dont ever steal it from her either as theyre fed seperately. But 8 month old could see 1 year old during meal time. Resulted in her sometimes not eating (to guard it) and growling from the other end of the room. I completely seperated to solve that problem.
Now she is guarding me. I cant stroke the other two when she is near me because all hell breaks loose. She was very submissive to my male, but now she is gaining confidence there.
The fighting is increasing and getting more aggressive. I have ordered the book "mine" in the hopes i can fix the whole problem.
In the meantime, everyone is telling me to rehome and id rather not.
Their reasons are my other 2 got on great when she wasnt here. I have kids (7, 9 and 13). Walking has become a nightmare as she is so strong willed she is really hard to train (i think she is just very intelligent).
The cats are terrorized by her and this has encouraged my 1yo dog to join in the fun of it, when she never used to.
8 month old has urinated on my settees a few times.