Hi Newbie here ~Oceanic SeaClear 2 ?

Hi I just set up a Oceanic SeaClear 2 Acrylic aquarium and I have a couple of ?'s. First of all I need a bigger tank. I have 2 and both are 30g. You can check out my other aquarium at youtube.com and search for localacava .
Okay so the back of the sea clear is a trip and I've already downloaded the manual and cant figure out if there is supposed to be air being pushed up from the bottom like as if you were on a beach. Like waves? Where the pump attatches on top to the aquarium with a hard plastic - it was rigged and its leaking a bit. How can I stop the leak> Glue it. Im not sure I can post a pic if anyone wants to see it. I just want to see if anyone knows how to set this tank up properly.
Thanks
Jennifer
I already have a bubmblebee snail and 2 damsels that are just fine.!
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