Who long is the gestation period of a white-spotted puffer fish OR a glass fish?
When I think of gestation, I think of livebearing animals including fish but not egg laying animals including fish. If you are asking how long does it take for eggs to hatch once they are laid and fertilized then that is another question, and it depends on the fish and the temp that the eggs are in. I would think that the glass fish eggs would hatch in less than a week and the puffer eggs should hatch in about a week or so. I would have to check my books if they have any information on these fish.