I was waiting for this one lol.. Have recently purchased three crabs and asked for two females and one male. But in a rush to get them in the tank i hadnt really looked if they actually gave me what i had asked. Now its really hard to get them out in the open to see. Great video as always
Not unless you catch one and peel the flap open and check. Which is an extremely bad idea. When they are carrying eggs though the underside flap changes shape to a bit of a bulge.