Red crabs are generally fattest in October.

The red crab is not a certain species of crab, but a female crab with mature gonads. It is usually a swimming crab or a blue crab, and most of them are blue crabs. The paste of this kind of crab is very fat, the meat is very delicate, and the taste is very delicious. Every September and October is the time when it is full of yellow fertilizer.

I hope the above information is helpful to you. It is recommended that you consult a professional crab farming expert to get a more accurate answer.