Multi-select problem: How does the next paragraph end?

How to keep dogs in the same house from fighting
Do not reward aggressive behavior.
Provide each dog with its own separate bowl, with plenty of space between them. If your dogs show signs of aggression while eating, you may even consider feeding them in different rooms.

OPT:
(1). Make sure they are being supervised for at least one full day. Each dog should be provided with a basket for sharing with others, and room dividers for sharing food.;
(2). When feeding time is over, remove any uneaten food to prevent dogs from eating each others' leftovers. If you provide a treat or bone, provide one for each dog.;
(3). A poorly fed dog may even develop a disease that affects their teeth, which can lead to behavioral issues later on. If your dogs don't like being put in the same room as each other, and exhibit aggressive behaviors as well, begin putting them into a separate small pet-controlled area to care for them.;
(4). So if your dogs always fight on their own, let your dog use the other space. If one of your dogs is reacting aggressively with a food dish, crate, or other object, hold it so it does not physically attack your dog in any way.;
(2).