and please post pics of your sand rivers
and a discreption of how u did it
I wasn't there and I'm not associated with them but they have good pictures.
can u use marine sand(its basically pool sand)
could i use plastic gutter to divide the sand and florite from eachother
The first question was answered in your another thread
You can use any material thats readily available to you for the divider. Its temporary and removed before water is added. Just be creative.