Players can interact with their SolChicks by feeding them. Although SolChicks can theoretically never starve to death, there are penalties if the Solchicks are unfed for a period of time. Conversely, there will be benefits if the player keeps their Solchicks well fed.
Players can feed their SolChicks food such as SolFeed and Lobster Bisque etc. which provide certain amounts of happiness and hunger points. Similar to real life, feeding is subject to diminishing marginal returns. In other words, food should be fed at regular intervals and not all at once to be most effective.