When I went to my friend’s house recently, I noticed a big fish tank with colorful, vibrant and active fish. It was breathtaking to see the bright colored plants along the unique assortment of fish swimming around. I then observed a fish relatively smaller in size sitting for quite some time near some bushy plants in the tank. Only when the food was dropped, the small fish would dart out to quickly get at the food and then quickly hurry its way back to hide behind the plant. I finally noticed what it was so afraid of—whenever the small fish came out for food one of the bigger fish would chase it away.