“The Cliff” is a drip wall tank which features water that runs down a stone background, and is clothed in an array of moisture loving tropical plants.
The tank, hardscape, and plumbing setup took several months to construct.
From the first planting, until the final tank photos were taken, took almost one and a half years, and involved countless hours of tediously adjusting plant species, planting arrangements, and bottom rock compositions.
Believe it or not, the overall concept for this build was sketched nine years before the finished tank was finally produced.
This terrarium is lit with the LED hood that came with the tank, as well as an additional generic LED puck light (300 lm, 6K) that was purchased from Amazon. The puck light is placed on the tank lid, at the very front, which increases illumination at the lower levels of the design, as well as under the overhanging rock ledges and plants.
The background is 100% real stone. It’s a relatively lightweight volcanic type, often called “feather rock.”
The bottom substrate is a layer of sand, with strategically placed feather rock pieces to conceal the bulkhead drain and create a flowing composition that naturally leads up to the background cliff.
A basic summary of the water feature setup is:
A sump, which sits below the tank, inside the stand
A water pump that feeds water to the top of the tank through a flexible hose
A bulkhead drain in the bottom glass, which returns the water to the sump
An out-of-loop filter that draws from the sump (more info below).
The container is an Aqueon 15 gallon square column aquarium kit, which comes with the glass tank as well as an LED hood.
The tank dimensions are approximately 13.75″ x 13.75″ x 25″
It sits on the Aqueon stand that is made specifically for the 15 gallon column tank.
On occasion I mist the tank, particularly the filmy ferns, although it’s not totally necessary due to the high humidity and frequency of the drip feature.
Only distilled water is used for the water feature and misting.
An 80% water change is done once or twice per month.
The light is kept on for about 13 hours.
The drip wall pump turns on for two hours in the morning, and five hours in the evening. Periodic water flow (as opposed to constant) has many benefits, particularly that it reduces algae and biofilm growth, and results in better plant growth.
There are two PC fans at the top of the tank that turn on intermittently for 30 minutes, every three hours. The fans reduce mold and help dry some of the standing water on the plant foliage and rock wall.
Selaginella sp. “White” Peru (primary / focal species)
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