How to Choose a Coral for a Saltwater Fish Tank

The vast variety of corals and the many stores that sell them make it essential to know what you're looking for before you enter the store. Knowing how to choose a coral for a saltwater fish tank will help you build a vibrant and healthy aquarium.

Instructions

Difficulty: Moderately Challenging

1. Select a store that has a good reputation and takes good care of its fish and corals. Notice the condition of the tanks. They should be clean with clear water, and the fish should appear healthy.
2. Consider which type of coral you want. Your tank conditions will limit your choice somewhat. Corals need different amounts of light and water flow and also have different feeding requirements.
3. Observe the coral while it's in the tank. Look for damaged spots on the coral. These spots can heal, but will require additional care. Also check that the tissue of the coral is whole and not flaking off; this is a symptom of tissue necrosis– a condition that can spread and kill all of your corals.
4. Look for coral that's open and fully extended. A closed coral may just be stressed, but it can also be a sign that it isn't healthy or that there are bad conditions in the tank.
5. Make sure to handle the coral very carefully once you've chosen a coral to purchase. Corals transfer best when they're mounted on something, usually a small piece of live rock. If the coral isn't mounted, you should mount it yourself before you place it in your tank.

Tips & Warnings

• Remember that corals are animals, not plants. You must feed and care for your corals just as carefully as you do your fish.