Chihuahuas are smart little dogs. This guy might be training you a bit. He may not actually be afraid of the food dishes, he just prefers you catering to him.
What brand of food do you feed him? Have you been switching brands often? Do you add people food to his meals to entice him to eat more?
If you aren't feeding a quality brand of food and/or have been switching brands to try to get him to eat more, you may have upset his stomach at some point and that can turn him off of eating. Also, the ants are not a pleasant experience in food. That may have been the start of the problem- he ate a bitter ant with the meal and decided not to do that again. Put the food dish inside another dish filled with water (make a moat around the dish of food basically) and that will keep the ants away. For now, use a plastic dish with low sides that the tags won't bang against and cause noise to scare your pup. Dogs that eat scheduled meals tent to eat more than dogs that are "free feeders". No dog will starve itself to death if it is healthy. I put my food dishes down for my dogs twice a day for 20 minutes. It's their choice to eat within that 20 minutes or not. They don't always eat it actually. I don't worry about one or two skipped meals.
Hope some of that helps, good luck.
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PHReign
Email me: HReign@pethobbyist.com" target="_blank">PHReign@pethobbyist.com
Dear dog,
I can not buy anything larger than a king sized bed. I am very sorry about this. Do not think that I will continue to sleep on the couch to ensure your comfort. Look at videos of dogs sleeping, they can actually curl up in a ball. It is not necessary to sleep perpendicular to each other stretched out to your fullest extent possible. I also know that sticking tails straigt out and having tongues hanging out the other end to maximize space used is nothing more than doggy sarcasm.
