Here is a fun idea for getting an underwater coral reef type garden in your landscape.
I used sea shells, brain coral, buoys glass balls, anything with a nautical feel.
The mulch is from Landscape Depot in Rockledge FL. It is a mixture of different sea shells and is perfect for the under sea gardens.
Succulents have unusual shapes that can do a wonderful job of mimicking under water plants. You can have a lot of fun picking out your plants and setting them up around your stones and then adding your decorative accents.
One easy way to make it look right is adding bright blue and aqua marbles. Glass floats in aquas and blues also add the bright water accents you can use to make it pop.