Instruct: Classify Amazon reviews into positive or negative sentiment
Query: lid doesn't fit on with filter in place

The top/lid for this tank just sits on top, but the filter that comes with this clips over the back edge of the tank (hangs inside the tank) and even at it's lowest setting still sticks up too high so the lid sits up on it, which is right in the water stream going over the filter and then the back edge of the lid and top of filter get moldy. Not to mention that the lid's lamp has never worked even though the bulb is good (we tested it) and I think it could have something to do with the huge amount of condensation that collects up there all over everything. Also, the tiny flap that you are supposed to use to put food in the tank through is very small so generally catches some of the food. The shape of the tank is pretty, and the colors are nice for kids, but it's frustrating that the parts don't fit together.