hi Andreas ...
tell me have you ever had a problem with the overflow box
when the power is out and then back on with regards to the
syphioning, i do have off cuts of glass left around if it can be made from it,
can you probably help me build it up with detailed description please
as im afraid to have the tank drilled and to have it crack again
i have a 600mm x 300mm x 300mm display tank
thanx