I recently purchased a fish tank for my daughters birthday. It's a 5 gallon tank and I've added rocks, silk plants and a hollow log that sits on the bottom of the tank. I added water conditioner and let the water filter for several days before I added her male betta, Sheldon. I added him yesterday morning (Saturday). At first he would stay near the top of the tank and would rarely siwm down towards the bottom. He could see his reflection on the side of the tank, but didn't flare or try to attack it. I've tried feeding him twice and he never gets the food. It has eventually floated down to the rocks and he still hasn't touched it. Last night when I went to bed, he was under the hollow log and this morning he is still in the same place. He moves around and when I move my finger in front of the tank, he backs up but stays under the log. I'm very new to owning a betta and fish in general for that matter. Is this normal behavior for a betta fish? Is there anything I need to do, change, etc? There is no heater in the fish tank but the water is at 77.6 degrees fahrenheit. There is a light on in the tank and the filter does not produce much of a current. Any advice or help would be greatly appreciated!