This Avatar-themed aquarium somehow includes underwater waterfalls

I know, it sounds completely ridiculous. Who the hell would make an Avatar-themed aquarium? Well, this guy did, and he also included two beautiful waterfalls that cascade down their rock walls — despite both being completely underwater.


Sadly, this feat wasn't achieved by copious praying to the Home Tree or through the use of Unobtanium. Instead, it's just fine white sand that's falling down in a manner most waterfall-like, which then gets pumped back to the top of the falls. Looks good though, obviously. found the helpful how-to elow if you want to freak your fish out in the same manner:

Thanks to Caleb K. for the tip!

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When you said "Avatar themed aquarium," my mind jumped... Elsewhere.