So after a year or so of have a 29g tank I wanted a bigger one so I got a 55g. I rinsed my sand out pretty well so all i have in the tank is the sand, heater and the **** filter doesn't work ! I figured the first one I bought was broken from the start. I buy another and it doesn't work either ! I assume it has to do with the sand? I checked everything out and nothing seems to be in there. I spent a lot of money and I'm frustrated cause I went the cycle to start already. What should i do?