oh man, that's so awesome...
[MENTION=6242]AquaticLife[/MENTION] can you mount them upside down...? say, with the motor sticking up...? in case your tank is drilled... can the motor be outside of the water and the outlet inside the water surface...? i'm sure you can have them in with a 90 elbow going downwards... but i wouldn't want the return that low from the surface in case the pump turns off... so having it stick out of the water would make more sense...
more sense to me... LOL...