i was in walmart today and i picked up a 2gallon hex tank and purchase a nice blue betta. I just read the pinned topic about taking care of betta and i think i did everything wrong first as soon as I filled the tank I just dump the betta right into and I didn't not purchase a heater as I was told that I don't need one. He looks pretty happy now, but my question is since the tank doesn't have a filter just an air pump how are u supposed to cycle it, I put some gravel from a previous tank which didn't have any fish on it for a week(it was cycled)and some "cycle" which I normally use when cycling my main tank. Also what should i feed him(Is it the same as other tropical fish) and lastly could I put a betta on my main tank(my sig)...thanks for putting with this nonsense guys