"The other poster must not have not screwed the stand together tightly. Although one plastic bracket was missing, the stand still sits solidly. I made sure it was level and on hardwood floor.
The instructions say this is for a 55/75 no mention of 90 gallon is made. I would probably not use it for such a purpose.
My 37 gallon bow front with 15gallon sump, 35lbs of sand + 40lbs live rock (~650lbs) sits with no indication of wobble or need for concern.
The finish will bubble if you let any water sit at a seam. I had to glue the laminate that had peeled off the edge of a door(damaged during shipping). Otherwise it looks great next to an espresso finished living room set.
Pros - Looks nice, solid top, useful storage/sump areas.
Cons - Missing pieces - laminate finish is delicate. Not rated for 90Gallon regardless of PETCO's claim."