Yep, mine is a dosing pump set up running through a mini fridge. I ran a line off my manifold into the side of the fridge and plumbed in 3 murloc t's and dose 3 kinds of reef nutrition refrigerated foods: mysis feast (3x per day), oyster feast (2x per day), and R.O.E. (1x per day).
The line discharges next to the return pump and them is distributed through the tank via the 4 locline return nozzles so the food is spread throughout the tank.
This is an older picture showing the premise of it. I'll post pictures of it later that show it completely finished