top of the stand might be tile the tank is 48 by 24by 13 so much room this is just four frag grow out i am doing a 20 long above it with 3 10 gallon tanks there will be more pics as soon as the merry maids show up two cleanlooking good, I like the shape of that tank for a shallow reef...well spread out for depth when arranging the rocks. Is that a plywood top on the stand? may want to seal it so salt water doesnt destroy it.