Wash the salmon head with the lemon juice and cool water, then drain and season with the Caribbean green seasoning and fish seasoning. Wash and prep the other ingredients, trying to keep the sweet potato, potato, carrot and christophene in large pieces so they hold their shape when the soup is completed.
Place the sweet potato, potato, carrot, celery, onion, garlic, fish, half of the black pepper, salt and thyme in a large soup pot.
Tuck the seasoned fish pieces in between the vegetables, then add the water. Add the soy sauce and place the whole scotch bonnet pepper in the pot. Bring to a boil, then reduce to a rolling simmer, adjusting the water level if needed as it cooks.
Cook for about 25 minutes, skimming off any scum from the top and discarding it.
Add the okra and stir well, but be gentle as you do not want to break up the fish.
About 10 minutes later add the broccoli. This is not traditional to the recipe but it is a great way to add more beneficial vegetables to the mix. Spinach or shredded dasheen bush leaves would also work nicely here.
Four minutes later taste and adjust the seasoning to your liking. Remove the scotch bonnet pepper or break it open to release the sizzle of the Caribbean sunshine (heat) if you want more kick in the broth. Add the remianing black pepper.
Finish by adding the lime juice to brighten everything up and the chopped chadon beni for that final herbal note. Turn off the stove and enjoy. Caution. The more you stir the pot as the broff cooks, it will break up the salmon head and it may relase bones. I'd also recommend letting your guests know about the bones of the fish as it can be a potential choking hazard.