Wayward Son:
Even in south FL, cuda may be eaten safely but it's prolly a good idea to stick with the smaller ones that haven't had enough time to become toxic. I know guys down there that only shoot & eat them if they're under 3 feet long.
My favorite is Grouper. I just love the sand explosion they cause when you shoot them from under a coral head. Exciting stuff!
I know a lot of people that follow your same rule Wayward Son

. Just in case there are people here that consider the Dry Tortugas to be the S. Florida area I think this is worth mentioning.
I used to work for the Florida Marine Research Institute in Saint Pete Florida and my supervisor was a Phd Phytoplankton expert. His main research was involving toxic Red tide causing phytoplankton and the toxic ciguatera causing dinoflagellate. He used to take trips to the Dry Tortugas with other marine scientists to research the ciguatera causing plant. They would target the Tortugas because at the time it had the highest known concentration of the ciguatera causing dinoflagellate in the country. Just like Wayward Son pointed out
these are little plants cling to the reef and reef eaters like parrot fish nibble the reef and become toxic. Then larger predators (Snapper (Cubera Snapper in particular), Cuda, Groupers, etc) spend their lives eating lots of these reef eating fish and so over time the toxin accumulates in the larger predators mentioned. The bigger they get the more toxin they accumulate.
Ciguatera is a really terrible thing. It can cause damage to the central nervous system. Some of the syptoms are hot cold temperature reversal. Hot things feel cold and cold things feel hot. You can even have symptomatic flashbacks years later like LSD. Not that I would know anthing about LSD

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I personally dont eat cuda but if I did I would make some adjustments to that rule if I pulled the fish from the Tortugas area or anywhere nearby

. Remember that cudas tend to cruise out into the blue water far away from the reef sometimes too. I would even think twice about eating a sizeable snapper or grouper from that area.
Hello there ONESPEED ! So what does ONESPEEED stand for anyway?