Hello plant people, does anyone have information on water lettuce? It is a floating plant, the leaves are outside the water and the roots are submerged just beneath the water surface. It basically just hovers on the water surface. I'm kinda planning on putting some in a pond with tinfoil barbs. I wanted to have some plants to help a bit with the filtration / water quality. The problem is I can't get any plant in the water that the tinfoil barbs won't eat. So I'm thinking that this could be a solution of some sort. Thanks in advance for the help.