I am planning on moving my Betta from the 5 gallon tank he’s currently in, into a new 6 gallon tank. I know it’s not much of a size difference but the 6 g has more specs and just looks better all around. My question is how would I go about cycling the new tank? The 5 g tank is cycled so do I use that filter on the new tank? I would assume going filterless would cause some problems in the old tank. Do I just start from scratch and cycle the new tank the long way? What would be the best course of action to take? I appreciate the help!