Anyone want to learn advanced rockwork techniques?

[SiliconGuy]

Albert,

Thanks a lot - these are quite helpful.

I'm a bit hesitant to work on existing rocks (as this is all I have) and
cure concrete in my tank so I'll have to think this through some more.

Good luck with your presentation

Cheers from the Okanagan,
-Benoit

[hillegom]

I'm going to try to make it tonight