Sorry this has taken so long. These are a couple of pumps that should work. The first is an all-in-one set up that includes filter box with media.
This looks like the best so far. It will run a 1.6" depth.
EHEIM Shallow water internal filter miniFLAT - 2203 [2203020] | aquaristic.net


This one is you basic pump. Its one of the only that I've see to have the intakes on the bottom. With this one you will have to build a filter box, which is fairlyeasy to do. That's where I'll have to email you pics.


80 GPH Submersible Pump Aquarium Fish Tank Powerhead Fountain Water Hydroponic | eBay