the river tank questions

[valeria87]

i recently got a river tank eco system thing...like they have in some elementary schools and well it was given to me missing a few parts (i believe) the water pump isn't creating the waterfall like it's supposed to..i can hear it running but no water is coming out. so am i missing something or do i have to go buy one? and which kind do i buy? please help?! or point me in the direction to get help LOL

 

[Thyra]

I have no idea what a "river tank" is, but some pumps do not work unless they are completely covered with water or primed.

 

[freash_water_monster]

You may have to pour water into it first thats what i have to do with my filter