Glad you liked the thread.Very interesting thread, enjoyed reading it over my Sunday breakfast!
Will have to try and get some reliable info on whether eucalyptus wood is aquarium safe so I can collect my own. There's lots of conflicting info about.
I would be a little cautious of eucalyptus.
It's a very sappy tree.
I had one in my garden and I was tempted to try. Like you I could not find any reliable information . I decided to give it a miss.