Thanks everyone! I treat with bloodworms occasionally. Unfortunately, my heater is a preset that is set to 78 but it is relatively cold in the house in winter so the water cools down a couple of degrees. She's definitely not sick as she is super active, constantly swimming around. She just doesn't seem that eager to find the food. Once she does find it she eats it in a couple of seconds. But she just doesn't find the food or seem eager when I go to the tank. I feed one flake a day and a couple bloodworms every Saturday. Her tank is really heavily planted with lots of driftwood and a huge bushy plant that has taken over the tank along with a couple other plants. She has a filter with a very very low output(when I feed her, I put the flakes in the flow and they barely move). Warmth may be the problem but I can't do much about it. I don't want to get a new heater because as soon as spring and summer rolls around it will be useless as it gets warmer in the house and all water in my tanks warms up to around 80.