40 pounds per square foot-U.S. building codes specify a uniform live load of 40 pounds per square foot (psf) for most residential floor designs. This load is intended to account for the large number of loads that can occur in a residence. In reality, these loads do not typically take the form of uniform loads.
water 8.33 lb/gallon
gallons 127
water weight 1057.91 lb
glass 0.09 lb/in3
length 48 in
width 24 in
height 22 in
glass btm 1152 sq in
glass front 1056 sq in
1056 sq in
glass side 528 sq in
528 sq in
glass sq in 4320 sq in
glass thickness 0.5 in
glass cubic inch 2160 in3
glass weight 194.4 lb
total wight 1252.31 lb
area on floor 1152 sq in
floor load 1.09 PSI
floor load 156.54 lb/sq ft
Room 10X10 100 sq ft
room load 12.52 lb/sqft
Really should try to straddle multiple joists perpendicularly. Being near an exterior wall helps. Given that you are parallel it depends on your joists and how far they span versus where the tank is. Is the tank in the center or near one side of the span. Also joist spacing, 16 inch on center? Your only going to get 2 joists loaded running parallel. I would get some cinder blocks, sims, and a jack to support from below.