Correct water temp and heater wattage question
I have a 55 gallon tank that I have placed in the basement. Before in the old house, the temp never really fluctuated much and haven't used any heaters for years. But being in the basement, I'm sure I need heaters and wondering, since I don't really know how cold it may get in the basement in this house during winter, if I were to get two 300 watt heaters do you think that would be doable? I mean, it won't cause the water to over heat if I set the temperature to say 72 degrees?
2nd question, I can't remember what the correct temperature I should be aiming for. Can anyone let me know? All I have are 2 clown loaches, both about 6-7 inches if that matters.