ow, i remember the troubles before, and i wish things were different now...
Do you think maybe it has to do with the original design of the sieve?
As you know i had trouble with my 90Gl hexagon tank, that started to leak, and i blame the design.
The waterpressure was not distributed evenly, and that took it's toll after several years.
I didn't bother with resealing and gave the tank to someone who was gonna redo the sealing and keep turtles in it...
You still had adequate tanks around to put your fish in, for i know this was one of your bigger tanks?
But i seem to remember that you were not completely pleased with the swimming space that the sieve provided for your o's.
Not that that should be an excuse for the tank to start leaking. :angry: