Goniopora: Daisy or Flowerpot Coral
Family: Poritidae Genus: Goniopora
by Sara Bertolino
Coral Overview
Goniopora spp. "daisy" or "flowerpot" corals have been common imports from Indonesia and other coral-collecting regions since the early years of the reef-keeping hobby. Alveopora spp. are less-frequently harvested relatives of Goniopora spp. These distinct genera are often grouped together by aquarists because they have similarly elongate polyps with daisy-like heads. The difference is that the petal-like tentacles in Goniopora number 24 and in Alveopora there are just 12. (Julian Sprung)
In reviewing numerous articles on this coral, it is most likely wrong to generalize that all Goniopora are difficult to keep. Please do note that this is not a beginner's coral and is better left at the LFS than in your tank if you have not done your homework on its requirements. As Fin and Feather states in the Advanced Aquarist Online Magazine, "dozens of people around the country and the world have been successful with these corals for many years, some as long as nine years and longer. The ability to share with fellow aquarists frags from these long-term colonies will help ensure the establishment of captive strains of Goniopora . Many people have also successfully grown daughter colonies dropped by the parent colony." With that being said, I believe the future of keeping Gonioporas in our reef aquariums will become a reality for the many that admire this coral.
The range of desired flow, food, and light needs differs among the many species of Goniopora . Some grow quite large and a mature colony may look like a colony of Porites from a distance. Others have short polyps and are encrusting. Still others are free living on soft substrates.
The different species have polyps of different shapes and colors which allow them to be identified underwater.
Placement
Many state that more success is found with placement on the substrate. It is not the substrate itself that benefits the coral, but the less-intense water flow and less-direct light. I have kept the pinks in the substrate, but the dark red one has been placed up near the top on my rocks when I had less lighting and it was not hit with direct flow. All of my Goniopora's currently reside in my substrate and that is where they will stay due to my lighting and flow. They are located just 24 in. from (2) 250-W metal-halide lights with 20K XM bulbs. I also supplement with daylight VHOs. The tank was also originally set up as an SPS tank, so it also has moderate to high flow with a Tunze 6000. The first link listed below is to the Advance Aquarist, which has detailed information for each variety of Goniopora and its placement for light and flow.
Feeding
I currently do not target feed my Goniopora's. I feed daily with Rod's Food which has small foods that the Goniopora eats such as Cyclop-eeze, rotifers and DT's oyster eggs. I also dose a capful of DT's Live Marine Phytoplankton-Premium Reef Blend every other day. I also try and feed live baby brine shrimp every other week.
I do have a jar of DT's oyster eggs in the freezer just waiting to be used. Per DT's website: " Corals for which this food is particularly useful are those with poor prey capture responses and those with very small polyps. Included are Porites , Montipora , Goniopora , gorgonians, soft corals. The oyster eggs even show success with the maintenance of previously difficult or impossible to maintain azooxanthellate soft corals and seafans.
DT's Live Marine Phytoplankton - Premium Reef Blend naturally provides needed nutrition for your reef inhabitants, through both directly feeding some reef inhabitants and indirectly feeding others by increasing their food supply. There is evidence that soft corals, along with Goniopora and gorgonians may also benefit from the direct consumption of phytoplankton."
I also run a 70-gal refugium with a deep sand bed and the use of these methods also encourage the growth of a variety of small zooplankton and plankton-producing organisms (by spawning, larvae in water column).