Well fellow Aquariast the prototype is working well so I built a more substantial unit out of proper materials.
First I constructed the bottom out of a piece of white 1/4" plexiglass I had laying around it measured 9"x15" so I cut 3" off two sides to end up with a bottom that measured 6"x12" then cut the 3" pieces in two to end up with 1-1/2" strips to use as the sides. After cutting and fitting the pieces I glued them to gether with super glue and aquarium safe silacone, here it is!
Then I purchased some egg crate and cut out two side pieces that measure 12"x11" and then cut two pieces that measure 7-1/4"x11" here they are.
Then I zip tied them together to form a box to go around the bottom.
Then I drilled holes in the bottom to incert zip ties through and zip tied the egg crate two the bottom. here it is.
Then I zip tied non toxic foam floats to the top of the unit and presto here is a floating plant basket with a bottom I can fill with live sand for securing the plant roots!!!
Here is the finished product.
Once I have it in the tank I will add a picture if anyone is interested. Thanks for looking. Reefman