Hi, I am new to the whole fish thing. I bought a 10 gallon tank with a 50 watt heater, and a quiet flow 10 filter (rated up to 10 gallons I believe). I have 4 neon green glofish tetra that are supposed to get about 3 inches. It has been around 3 days in this tank and the water is cloudy, and was wondering how to make this go away, and when it comes to water changes how often and about how much should I do?