Hi Tentance, and welcome to garden.org Would you please fill in your personal profile with your location (I know you're in FL but the city would help) so that we can answer your questions easier?
I'm not interested in the rabbits, personally but will pass along your info to friends and neighbors. Btw, it's a bad idea to put out your e-mail address on any public forum, so you really REALLY should edit that out of your post above (see the Edit link in blue in the lower right corner).
Also, just so you know water lettuce and water hyacinth are both extremely invasive and it is illegal to plant or propagate them here. People get starts of them from ditches and ponds at the roadsides but again you really don't want to plant those in your pond - they'll take over in one summer. Get a start of a nice water lily, or lotus if your pond is big enough. They're beautiful, shade the water nicely so algae won't grow, and don't take over the whole thing. Cannas also will grow beautifully at the edges of your pond and bloom all summer. There's a lovely blue water iris that's also a native and easy to come by.
