I did little research on Fungia. Here is what I found.

1. They can be easily damaged if lifted from a tank while fully inflated due to the increased weight of the water. It can cause tearing of their tissue.

2. They should be isolated from other corals. The plate will usually win the battle. They can be very toxic to other corals.

3. They need to be fed because of the high carbon demand from the production of their mucus coat. Feeding also provides needed trace nutrients. Starvation usually results in regression of tissue and/or expulsion of zooanthellae.

4. They shouldn't be put in the bottom of a deep tank.