Roughly blend the tomatoes, peppers, and the one onion. Pour into a fine mesh sieve to drain out the excess liquid.Heat the oil until very hot but not to bleach. Pour in the sliced onion along with the bay leaf and sauté until translucent. Stir in the crayfish and leave to mix in for about another minute. Pour in the tomato and pepper mix and stir. Season with salt and or bouillon and cook until the oil floats to the top. Add in the fish and stir. Cook for another 5 minutes. Remove the pot from the heat, drain out any excess oil, set aside and serve with rice and or fried plantains