What's cooler than an underwater waterfall? How about two?

Click through to see the images.

The plants in this tank are a bit overgrown and probably due for pruning unless the aquarist is going for the wild growth look.* This trivial commentary aside, the dual cascades over seiryu rock are some of the most spectacular, dramatic, and realistic we've seen.



[h=2]An Underwater Mirage[/h]Underwater "waterfalls" are really sandfalls to create an illusion of whitewater breaking over rocks.* An air pump is used to carry very fine white sand (usually silica sand) up a tube where the grains cascades back down through the aquascape into a collection basin.
It takes talent to create a sandfall that naturally mimics waterfalls - even more so when it is a multi-tiered cascade.* Careful planning is also required to make sure the grains of sand all fall back into the collection basin.* Otherwise, the sand will eventually build up where you may not want it to.* Take for example this beautiful aquarium suffering from the design flaw where sand is pooling at the bottom front of the tank:



[h=2]Your turn![/h]Want to try this yourself?* Here is a step-by-step video about how to create an underwater waterfall:







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Se ve interesante la idea, hay que ver como se controlaría el "polvo" o partículas en suspensión.