Its a sad day! the last of the finches has passed away. He was found swimming and doing a poor job of it in the top of the aquarium. He could be seen constantly in the water fall bathing evn sleeping in a cave behind the falls but allas he just faltered at the doggie paddle and has passed away. If im not mistaken the finches were above the tank for 6 years, and other then to clean off excessive dropping on the top of the lights once a year there was no clean up required. plants grew and would shed the stains and everything else seemed to end up in the tank and filtered or eaten by the fish. i know a bigger question is what the tank looks like today and i will try to get some photo's posted soon.