Been wanting to experiment with a sandfall for some time now but didn’t want to setup another tank. Started off with foam but then realized the buoyancy issue. I had two options...using an air pump or a powerhead. Both worked fine but I needed the fall to be as compact as possible.
This was with the powerhead...a little bulky for my application but worked really well:

This is with the air pump and air stone...very simple design. I cut up a 500ml water bottle to collect the sand so it would funnel down without making a mess. Also acted as a vent for the bubbles to escape without making much noise and hidden. Sorry for the noisy air pump.
Siliconed lava rocks onto the egg crate...mainly for texture:

Applied cement and color over the lava rocks, soaked for a few days with multiple water changes and ready to go at this point.

Tank before adding the sandfall:

Easy install and like the tree, the fall can be removed at any time. This fall was intended for the corner of the tank...maybe a center piece would have looked better. Fishes are adjusting to it.
This was with the powerhead...a little bulky for my application but worked really well:

This is with the air pump and air stone...very simple design. I cut up a 500ml water bottle to collect the sand so it would funnel down without making a mess. Also acted as a vent for the bubbles to escape without making much noise and hidden. Sorry for the noisy air pump.
Siliconed lava rocks onto the egg crate...mainly for texture:

Applied cement and color over the lava rocks, soaked for a few days with multiple water changes and ready to go at this point.

Tank before adding the sandfall:

Easy install and like the tree, the fall can be removed at any time. This fall was intended for the corner of the tank...maybe a center piece would have looked better. Fishes are adjusting to it.
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