Need some advice on how to cycle my 55-gallon goldfish tank. First question is.... does it matter how I cycle whether it is for goldfish or tropicals? Can I get a step by step on the cycling process. I want to raise a very healthy fish and do not want to jepardize it by starting off doing something stupid. I'll be using a canister filter with various media. Do I need a HOB for the cycling process. Also, I will not be using any live plants for this tank. I do plan in the future to set up another 55 with tropicals and live plants so I'm sure I'll be asking a whole new series of questions. Thanks in advance for the advice.