Plate coral reproduction
No, I do not believe this is the normal way they reproduce, and reproduction is pretty rare.
Baby plate corals grow off extensions of other plate corals, not other types of corals! Somehow this baby must have attached itself, very unlikely but it is the only way.
Most of the time when plate corals reproduce it is actually because of a trama to the plate coral that kicks of its instinc to reproduce. Then after the trama is over, they sometimes keep reproducing in the home aquarium.
Maybe this baby will give you other babies some day!
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