Hiya all.. have a cold water tank for couple of years now and just bought a new fluval Roma 240. Heard so much about the fx6 and bought it and now connection Is a nightmare. The tank comes with a fluval 307 filter and pre drilled holes inside the tank for the heads. Is there anyone out there who has connected the fx6 pipes from under the tank? It leaks from the top cause of the big pipes. Please help.