hi my tank is all being cloudy for no reason, a friend told me that it's because of my filter is broken or something, but it's been cloudy for a week i even did a 80% water change and its still like that i need your help, is it because of my filter? because before the water was crystal clear now its cloudy, and its not normal so plz help btw i only have 4 fish pleco, arowana, pbass and RTC