Ok so right now Tinsel is in this vase - http://floralsimplicity.com/media/ca...d/R/7/R709.jpg
It holds 1 gallon.
I was wondering if I should switch him over to this tank - http://images.buzzillions.com/images...669444_175.jpg
It also holds 1 gallon BUT it has a light, air pump and undergravel filter with tube. It has been used by one of my previous fish(not a Betta) but has been thoroughly washed. So should I move him into this tank? and if so should I use the filter and air pump because I don't mind doing frequent water changes. Will he be happier in this tank rather than his vase?
Also, what is this? It was part of the filter but I cleaned it and it still looks dirty. Can I buy a replacement?