Here is a quick sketch of the plan for the small PVC
canister filter I am going to build.
My question is which way I should pump the water through, or if it even maters?
The blue goes through the filter first, down then back up into the tank. If I do it this way the ball valve will have to go on this setups return line so I can use the quick water change line.
The red goes the other way, out the filter last right into the water. Obviously the valve would have to be on the lower line so the water could make it to the water change valve.
So which way should I go?
Also what would be good to put in this thing. I got a 46 gal
reef tank with high nutreients. I can also make multiple chambers so I can put in diffrent stuff. Im thinkin one will be filled with carbon, but what else could I use?