I have a huge Vision hatchling rack, and I love it. The tubs are the perfect size. I was able to keep baby balls in them until they were 500 grams, but I had no problems with starting the babies, because the tubs and long and narrow. There's also plenty of room to add a hide, and the little plastic dishes you can find at Target fit into the bins perfectly (they are bowls that double as hides, nice and smooth and easy to clean).