nitrigen cycle

Hi I have a question about the filter media. This is in my goldfish tank but I figured its the same eather way with filtration. My filtermedia is getting pretty ratty... I know they are supposed to be gross but after so many months of getting used it is kinda falling apart but all my bacteria is...

Hi, I just bought my betta yesterday, as a late Christmas gift from a cousin. It's a male crown tail...and I have a few questions lol Now, I spoke with several people yesterday and (I know I could have googled it, that's my bad) no one told me about acclimating the tank and the nitrigen cycle...