I have the rack pictured below (I hope Glimmerman doesn't mind me stealing his photo but it's late and I don't want to go out and take photos). It's an awesome little rack that's a great size for my setup but the only problem is the way the food is distributed. Currently I am just putting the cubes on the mesh on top of each tub. This has a couple of problems though. First of all it is pretty tight between the tubs so you kind of have to throw handfuls of food on top and they don't always go where you want them to. The second thing is that having it covering a quarter to a third of the top reduces air flow which is not good at this time of year. The last thing is that it seems difficult for the younger ones to even reach the roof to get the food. So I want to make little food hoppers but you can't just make the basket style ones in the mesh because then the tubs don't slide in and out. I was thinking of making like a "food cube" that is just like a free moving food hopper that can roll around in the tubs but has anyone else encountered this before and come up with a better solution?