sealant for tank needed

[jbb-square]

Just go a bigger tank. The tank was full no sign of leaks. When i removed the water from the tank it has what appears to be sealant that is not well adheared to the corners. Looks like someone added not factory. I need to put the water and rock in the tank but want opinions if I should replace this sealant and if so what is the cure time?

Thank you
Burton

 

[skriz]

If you decide to replace the silicone, you will need to cut out ALL of it and re-do the entire tank. You can't put new over old..it won't work well.

If you're having doubts, go ahead and do it now. You'll kick yourself later if you don't.

 

[jbb-square]

thanks I did not have doubts looked like a home job not sure why it was done. tank is full no signs of weakness. i believe some one had some sealant and just put it on the tank.