I'm planning to get a betta sometime in the next month of so (around my birthday) and since I have to wait a wile anyways I thought I would get a head start by cycling my tank. However, I don't have a lot of money right now (same reason why I', only getting the fish and everything later) so I was wondering what I really need to cycle. I"ve read the sticky about it, but I have a few questions.
I've already got a tank (5G) and decorations aren't a problem for me to get. I know you need a filter, so that's on my list. BUT. Do I need to have a heater while it's cycling? And does the water need to be conditioned? Anything else that is strictly necessary aside from the tank and the filter?