We just bought a used 64 gallon tank, but its a portrait tank (80x80x38 cm)as opposed to a landscape tank, so I was wondering if there are any semi aquatic TREES. I'd like to fill it 2/3 or 3/4 and plant a tree that would provide lots of roots for fish to play in, but would also grow out of the tank a foot or two. I know there are some plants that will pop out of the water, but I'd like something with a large root system where some of them can come out of the substrate. All the semi aquatic trees I've been finding on google are MASSIVE, like 100' trees. are there any that are 4' ish? or any substantial plants that would fit the bill?