The easy way to tell if the shrimp is a pistol is if he has ONE big claw. The Fish I'm still going with Serjant Majors, there are a ton of them there. Ther are a damsel. The bumblebee looking snails, I don't know the specific name of. They are a pain though. They are intertidal and will kill themselves in your tank. They will go out of the water and stay there waiting for the water to come back in. There are only 3 snails in florida that you really want. Nassarius Vibex, Nassarius Obsoleta, and Astrea Snails. You only find Astrea snails further south in Florida. You can find Vibex and Obsoleta at Sebastian in the sand at the tidal pool area. I may be wrong but it doesn't look like any of the pics of snails you have are nassarius. All nassarius snails have a little trunk that comes out, which I can't tell from the pics but it doesn't look like any of those do. The reason these three are the only ones you want is because they are the only ones that are herbivores and are not intertidal. The other snails, whelks, olive snails, etc, are all carnivores.