The Yellowmargin Trigger is commonly referred to as the Yellowmargin Trigger, Yellowface Triggerfish, Yellow-faced Triggerfish or Pineapple Trigger. Since the Yellowmargin Trigger is a very aggressive predatory fish, it is best to keep it in a large tank of 100 gallons. It is very hardy fish species as well as easy to care for that is why it is considered a good choice for a beginner aquarist. The Yellowmargin Trigger also requires excellent mechanical and biological filtration in the home aquarium environment, since it eats large amounts of meaty foods that can quickly foul the water. It often blows sand and substrate searching for invertebrates to eat and unwittingly undermining the foundations of rocks and coral. With its beautiful colored body and unique pattern, the Yellowmargin Trigger makes a captivating addition to a saltwater aquarium. Like all Triggerfish, the Yellow Margin Triggers have a spine located on the top of their head that can be locked in an erect position to help lock them in place when hiding in amongst rocks or corals. Make sure not to keep it with corals, invertebrates or smaller shy fishes as it can cause harm, which makes it unsuitable for reef tanks. The Yellowmargin Trigger should be fed with a varied diet of different types of meaty foods including chopped shrimp, squid, clams or fish.