the water alone weighs over 8LBs a gallon, I guess it would depend on how good the construction is. If it is a concrete floor you should not have any problem.
the water alone weighs over 8LBs a gallon, I guess it would depend on how good the construction is. If it is a concrete floor you should not have any problem.
Try removing some silicates and doing a water change also here are some good tips for maintaining the aquarium 10 Tips For Maintaining A Saltwater Aquarium
since the biocube is small, it is easily contaminated by water pollutants, make sure you do very frequent water changes with real ocean water or Reverse osmosis water