OK, done the pools!
Top view - fresh water is bigger as I found the crabs prefer to wade in freshwater
Salt water test - half done
Pebbles I am going to glue on.
The first one is the "most common pebble" in the pools. This gravel will raise the pH and gH of the tank - funny how it was the cheapest of the non-artificial black gravel.. only $2.99 per kg. But its very dusty!
Second one will be my decorative gravel, this will be streaks in the water - like a tiger :-
. This is from a fish tank, so it has good bacteria. I will also be getting java moss from my tank too. plus some algae - if I can get it...
Then the last one will be used as the sand stopper pebbles as I am thinking of running filters (or filter) in the tank(s)...