Hey to everyone out there.I have a 120g freshwater fish tank looking to convert to a fowler.I need advise on what i would need .I would like to have a sump but have no idea on how to get started.The only thing i plan on keeping is going to be the heaters.So could anyone tell me what am i going to need and which brands to go with.Iam going to start with about 50lb of live rock and add on later down.Thanks to everyone out there.