No problem..........
Be ready to move them around a lot though. I did.
I'll probably add one or two more as well. I got extra base rock i could use.
I hate that i made so big caves in the back so none of the shrimp come out..........
Looks good. I've got 110 lbs in my 55. Most of the time it is great but ceaning algae off the glass can be a problem around that much rock. I just like the look of it I guess. Nice job!