In case you are all still tuned in here is my trip report. I went with American Pro Diver. We were going to leave from the dock next to the "suites", but since it has been warm in Florida, the LDS had us go to the main shop and out to the docks to a different area. The guide worked hard to find the Manatee's in the murky water. My wife, Mom-in-law and Father stayed on the pontoon boat and saw a lot. Many divers followed the guide, my "spotting team" sent me to the lone Manatees. It worked great. I found out is that you don't "dive" with the manatees and in fact you aren't even suppose to submerge with the manatees. Regardless, it was a great experience, the guide wasn't in any rush to get us out of the water, and he didn't just put us in the water to get us wet, like one of the tour boats seemed to be doing. I did follow the other advice and did the drift dive on the Rainbow River. I saw some large alligator gar, and bass. I also saw crawfish, catfish, turtles, etc, etc. The water was 71 degrees. About 2 knots of current. I squeezed almost 60 minutes out of my tank and I still wasn't at bingo. Great dive.
Thanks to all of you that provided advice and ideas.