It comes with a sump, but I do not want to use it. It is leaking somewhere from the plumbing (easy enough to fix, but I can not be bothered).
I am thinking about the amount of room I have and I will be able to get more tanks in my room without using the tank and sump together.
Was thinking the same or some silicon possibly.
Maybe a good idea as well.
No sorry, I am going to pull it apart ans use it as a tank again.