It's funny I was thinking about that; tough for me to know which would be best. It's an odd shaped tank. Looking at it from the front, facing the corner, it's 36" across at the widest point, which is where the back walls meet the short front walls (10") which then are joined by a long flat front pane at a 45o angle. Similar to the oceanic 54 bowfront corner, except instead of the curved front, its 3 flat pieces. The actual display volume, given the fact that I have a large overflow box in the rear corner, is probably around 45-50 gallons.
I was planning on putting the nanostreams facing each other in the corners at the widest part. Right now there are maxijets there. It's actually a pretty good amount of flow combined with the return pump, but it's way too fast immediately in front of the maxijets and not enough flow in other areas. The 6025s would double the flow in GPH of the maxijets, but I understand the appearance is different due to the nature of the flow. I'd be a little worried about 2 of the 6045s in that space, with the sand bed. Given the dimensions I've described, what do you think?