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.
They like tiny bits of fruit or vegetables. But make sure they are very small amounts. because the last thing you want in an ant farm is moldy food. Ants also appreciate a drop of honey, some sugar, or bread dipped in sugar water. For their water supply, add a cotton-ball soaked in water. But mostly ants like sugary stuff.