Thanks for all of the replies. I forgot to mention it in my original post, but I am planning on putting in some unions as well as ball valves to make maint. a lot easier.
CptnJack,
Yes, black is better, I used to have clear tubing to a Fluval and it was a bi$%h to keep clean. I was...
This is the first drawing of what I am planning on doing for my closed loop. Please let me know if you would make any changes to it. If you think it is terrible, please let me know so I can make any needed changes. If you think it is a good idea let me know also. I am still new to all of this...