AI Hydra 26 or 52 for 38/65 gallon

[Cannoy]

I currently have a 38 gallon tank that i would like to add led's to, but i may upgrade to a 65 gallon. Would one 52 be enough or does that face these two tanks have a bar across the center mean i need two light? And if i do need two would two 26's be enough?

 

[Reefing Madness]

The 26 will be good enough for the smaller tank, but if your upgrading I'd go with 2 of the 52's.