Im going to be stocking it with native flora and fauna.
The plants will be mainly small ferns and mosses.
Because there is going to be alot going on with the hard landscaping I want the planting to be soft and subtle.
The main creature is going to be a shore crab - Leptograpsus variegatus
they are very cool crabs, I see them when I go fishing from the rocks.
They live above the high tide mark and they seem to be very intelligent and easily tamed. They are also fairly colourful as far as crabs go.
The only problem is they are also ferocious and anything else that goes in there will have to be very fast and good at hiding.
I have been experimenting with epoxy and sand to make the foam look like rock.
I collected 3 different sands- black, brown and tan.
I read on the interweb on how to do it but I couldnt find any pictures so I will post some on here

epoxying the sand onto the foam made it look like blobs of sand

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they looked crap so I added a pinch of very find, very dry soil to the black sand and I got this-

I liked how it turned out
heres another pic-
and heres a not-so-close shot showing the sand and soil with the soilless sand-

looks much better I think
btw here is a shot showing how fine the foam can be carved-
finaly heres where Im up to now-

tis abit hard to make out but it will make sense latter on..
Now I have to coat the foam with expoxy, sand and
soil and glue it in.
Then I will make the background.
After christmas of course!!!