Is it possible to safely house a diy waterfall in a garter terrarium? I was thinking about making the one on this page with my dad. Basically what I want to know is if there will be any hazards with doing this.

Note: I know that the more complex a terrarium, the harder it is to clean. Thing is, on my balancing scales, I'd rather have an awesome looking, harder to clean terrarium, than a stupidly simple (and in my case, super easy to loose interest) cage.

Thanks in advance,

Dragonbeards