Originally posted by Jag3365
What they mean by it is those casters are not designed to hold the weight of your tank. Your 75 gallon tank can weigh over 600 lbs in water alone. People have thought of it before, but rationale took over and realized it's not safe. Trust me...it may look fine now, but someday you will come home to a broken tank.
That's interesting. The casters I put on are triangular with three wheels each, each with a holding capacity of 300 pounds. I have 5 of them, more than double the anticipated load, and the tank is on a ceramic tile floor. I don't intend to move the tank around often, if at all, and certainly if I did I'd empty out half of the water - I understand the physical forces at play such as water exerting pressure in all directions.
But with even distribution and appropriate weight handling, why would it be any different than sitting directly on the floor?