ThRoewer
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There is one more good reason to keep them as a pair: they are able to successfully reproduce in captivity without any human intervention.
Their strategy is quite interesting: they dig a hole and lay a bunch of eggs in it. The male stays with the eggs, while the female seals of the cave and watches outside. Once in a while the female opens the cave and both clean the nest together.. Then the female leaves again and closes the cave again. This goes for 2 to 3 days. After that the male leaves the cave and seals it off. While the parents start the whole process all over with the next nest one baby fish develop inside the sealed off cave by feeding on the other eggs or his siblings. After a while one single, fully developed goby emerges from the cave.
Preliminary Observations on the Behaviour of the Gobiid Fish Signigobius biocellatus Hoese and Allen, with Particular Reference to its Burrowing Behaviour
Their strategy is quite interesting: they dig a hole and lay a bunch of eggs in it. The male stays with the eggs, while the female seals of the cave and watches outside. Once in a while the female opens the cave and both clean the nest together.. Then the female leaves again and closes the cave again. This goes for 2 to 3 days. After that the male leaves the cave and seals it off. While the parents start the whole process all over with the next nest one baby fish develop inside the sealed off cave by feeding on the other eggs or his siblings. After a while one single, fully developed goby emerges from the cave.
Preliminary Observations on the Behaviour of the Gobiid Fish Signigobius biocellatus Hoese and Allen, with Particular Reference to its Burrowing Behaviour
