Shed for scale
It's a young silver birch tree that some yobs broke off in my local park a couple of years ago maybe. They broke it off maybe a foot from the ground, so this is basically a whole tree. I came across it and thought, hmm, Birch is safe for tanks, isn't it? I wonder if it's dried out by now? And got some funny looks carrying it home.
Will saw through it to check it's fully dried out, but what do you think @NCaquatics? It was you who inspired me to get out collecting!
Obviously I'd need to cut it up a bit. I don't have a 5000 gallon it could go in whole.