Love the red but be it known, gonis are challenging and need the utmost stability. They get a lot of their nutrition from light as they are photosynthetic coral. Proper tank placement is important to ensure your coral is getting the right amount of light and current. Additionally, you should place Goniopora colonies in areas where they can spread their tentacles without coming in contact with other corals. This coral does not get along well with others, and will try to sting and kill any other coral in its vicinity, especially LPS corals such as hammer and frogspawn. You also shouldn't place two different species of Goniopora in a tank together. These corals can secrete a toxic chemical that will kill colonies of a different species.
Goniopora is pretty sensitive and can be closed for a number of reasons. Water flow that is too high or the wrong level of light intensity may be the cause. These corals also tend to curl up if touched by food particles from direct feeding. They may also stay closed if you have fish that are constantly rubbing against them. Oyster eggs is an excellent food for them
