Filter outflow ?

[joylynn]

I have my new 75G tank filled and am going to run the fitlers and heater for 24 hours before adding fish and Bio-Spira, but i have a questions about the filter, as this is my first experience with a canister filter. I have a Magnum 350 and the filter outflow is right at the waterline and is very strong. I looked at all the parts and the directions and it didn't come with an extender for the outflow, so I am guessing it is normal for it to be right at the surface, but it seems like it creates a very strong surface current, especially combined with the Emperor 280 HOB I am using as a secondary filter at the other end fo the tank.

Do I have to much filtration (is this possible )?
Is the outflow supposed to be right at the water line?
how can I reduce the amount of outflow pressure slightly as I will be adding plants soon? or will they be ok because it is right at the waterline?

I feel like these are silly questions, but I have never really seen a canister filter running that I have noticed.

Thanks!

 

[Jericho]

They do run their output right at the water line. The thought process is it causes surface aggitation and creates gas exchange. You can not have over filtration in my opinion, but you can have to much current for some fish. If you would like to reduce the current you can buy a hose to put on the out flow with holes in it as your water output (aka a apray bar). It will reduce the water current, I just made my own by buying some clear vinyl hose that slipes over the output hose. I then put heat to one end of the hose (either fire or a good heat gun) and got the plastic to melt and pressed the end together so it was sealed shut. I then to a drill and drilled a lot of holes in the tube in a line. I personaly drilled three lines that covered only 90 degrees of the hose. The larger the holes the slower the current.