Hi I have been looking at the 200L 3.3ft tank from allpondsolutions but notice that they have two versions one is 24.25 inchs high but for an extra £40 or so I can get the taller model which is 29 inches taking the tank upto 250L. I know that length or width is a more desired dimension for fish but I was wondering if paying for the extra heigh is actually worth having. Unfortuantly I have not made my mind up on what fish I actually really want yet, but African Cichlids, Discus and Killifish are making the short list at the moment.