When I resealed my 125 gallon tank it only took me 1 tube of silicone. With this tank I put an extra wide bead at the bottom so it used 2 and a half tubes. Overkill I know. I should of just went with a normal bead instead of what I did but its sealed up pretty good.
request's and quickly learned i could not compete with glass price's
however the request's for work done were more than expected.(silicone is cheap)