I have a 20 gallon with 5 rummy-nose tetras, 6 cory cats, and 5 silver hatchets. I cycled the tank with the cats for about 5 weeks before bringing in the tetras, and brought the hatchets in the week after that. The tank is heavily planted. I don't know the names of the plants, but three are very large and reach the top of the tank. I also have a few plants floating.

I always hear that hatchets will only hang out around the top of the tank, but mine have been in the middle ever since I got them. They are not eating. When I put in flakes, they pay no attention to them. Also, they are not at all active.

Any suggestions?