? about mag 7 pump

[reefcrazy]

is the mag 7 pump external or does it have to be in the water. i was recomended the mag 7 by some one but i not sure if it's external and that's what i'm looking for.

 

[von_rahvin]

yep i've been using my as an internal, if you use it as an external you ar going to have a problem with it overheating though.