yes it is a 20 long. and the table is not bowed. it just looks like it in the picture. i had this same tank on this same table back when it was my frag tank. its made from 1/2 " and 3/4 plywood. its not going anywhere. thanks for your comments and concerns
and yes she is ten she will be 11 in july. she does her own maintenance and buys most of her coral live rock fish etc..