Pond Garden

[gillymrd]

 this is my Dish it’s 2m in diameter. This picture is when I first got it and set it up, but since I have let it go and I want to re-establish it with Plants. I bought some water plants and also some floaters which are black rubber rings that hold the pot up so I thought I would try that this time because I found it with regular pots. The water got really dirty. So my question is given that it’s mostly the roots that will be dangling in the water what soil mixture should I use. There doesn’t seem to be a lot of advice about these floater devices and I wasn’t sure whether I should be using the same soil as normal or something different. Thanks so much