Do you have a heat gradient set up? IE one side of the tank needs to be about 90 degrees the other needs to be around 78-82ish....you also need a UTH or under tank heater with a thermostat control on it to keep it at 90 degrees....I would also suggest a thermometer for the cooler side and one for the hotter side (thermometers are about $11.00 at walmart) I dont have the exact link for the thermometers most ppl use around here.