Nice! Where do you get your bonsai wood from?
Would like to make a scape with it.
Personally I would like to see that bonsai as a "living" tree, with plants on the branches (rooty ends), just personally think a nice piece of manzanita would look better as a "dead" tree. But it is your scape and I am sure it would look great regardless. Lol perhaps you could even use weeping moss to get a half live, but half dead/spooky looking tree.
Don't give up on high tech. You just gotta find the right balance to correct the algae problems. Don't be ashamed to ask for help/suggestions, post a thread of your problems and see if others can help. Would make a scape look that much nicer and vibrant.
And might I suggest lily pipes instead of the green eheim intake :P