Hello,
I do not have any pictures of my set up at the moment as I am at work, but I am using a marine magic dosing pump (double pump version) to dose my ferts and liquid Co2 each day. The way I have it set up is the dosing pipes are plumbed into my external filter pipe to save having them hanging over the side of the tank.
The ferts/liquid Co2 then just get fed straight into the tank via the spraybar. Great if you are the type of person to forget to add your daily doseages. The whole set up is pretty simple, the worst part is setting all the timings.