This topic is brought up time after time. Instead of telling to to use the search function I will give you my opinion. I think the min. for life for a male Dovii should have a footprint of 8 x 30" if not a little larger. You would be fine with a 180 for a few yrs if bought small. A 150 is to small, also not only should the size be thought of but they make a lot of waste so water volume is important and often over looked with the large species.
