The Trap Pump
The hatch is made to conceal the pump. More importantly, letting the water but not the sand, the entire range acts as a natural filtration ... The pump draws the inside which is then re-sent on plants and decor via the system perfectly clean rain water.
Made of polystyrene, holed four sides and insulated with felt, the pump draws filtered by sand island water without risk of suck up sand.
Then, creation of camouflage hat.
The frame is made of polystyrene topped with a small square of felt, coated with acrylic sealant, and encrusted with sand.
The hatch in place covered with sand on the edge to hide the ends.
The pump hose is when to him camouflaged as wooden branch.
I recovered the bark that I surrounded and silicone to the pipe.
It was then vegetalized like traditional branches with the mosses to blend perfectly with the rest of the decor.
Besides, you had probably not noticed on previous pictures ...
This "branch" has become the support of the small fern "Polypodium vulgare."
Ultimately, it is the only artificial part inside the tank,
with technical elements (pumps, foggers etc ...).