Determine your purpose for the avocados. If you will need the avocados for an immediate purpose, or for guacamole, you would want to choose ripe, ready-to-eat avocados. However, if you are buying the avocados in advance, you can purchase the firm types, and ripen these at home.
Ants eat little insects that are alive or dead, honey dew, nectar and will eat sweets like sugar, syrup and jelly. Ants need both protein and carbohydrates to function.
While the red harvester ants will feed on a variety of seeds as well as grasses and even dead insects they tend to prefer to keep their diet homogenous until no more of that food is available to the colony when they will begin to eat a different food staple.