Thanks. I had thought of dividing it but thought it would be too hard: I have been looking for another tank for my fiances betta. I have seen how simple it can be to divide, here I was thinking that I would need to glue in a sheet of glass or drill and glue plexiglass, hence the reason for thinking buying a second tank would be easier! So, off I go today to buy the supplies to divide, as well as a tester kit as the one I have only does ph levels, didn't know about the nitrates and ammonia and all that.
Fiance says what a waste, a nice tank like that for only 2 fish. I said no, it is perfect, instead of spending another $100 or more to set up a second tank we have a perfect tank for our fish. They both get extra room and we don't have t worry about maintaining two tanks and having two heaters, two filters, etc. Guess some people need to be won over to the idea that it isn't a waste to use a tank for only two fish if it improves their quaity of life