Frogspawn coral is moderately difficult to maintain, but it is a popular coral that will thrive under the proper conditions.
Frogspawn or Octopus corals have very long tentacles when fully extended and are covered with short branches that are tipped with small rounded knobs that remain visible throughout both the day and night, resembling a mass of fish eggs or frog eggs, hence one of its common names Frogspawn. The tentacles are sometimes almost clear, but are typically various shades of fluorescent green and brown.
Most of the time, frogspawn coral and euphyllia corals are considered buddies and often do well next to one another, but should be carefully watched for any aggressiveness that may occur between them. It will sting other neighboring corals in the reef aquarium, therefore, it is best to leave plenty of room between itself and other types of corals.
It will need to have moderate to heavy lighting combined with moderate water movement within the saltwater aquarium. The symbiotic algae zooxanthellae hosted within its body provides the majority of its nutritional requirements from photosynthesis.
For continued good health, it will also require the addition of calcium, strontium, and other trace elements to the water. It will also benefit from additional food in the form of micro-plankton or brine shrimp.