My friends tank needs serious help. he had a really great set up going for awhile. like 3 yrs but now everything in his tank seems to be dieing, he has been neglecting his water changes and stuff so i dont know if that has anything to do with it and also he has had the same lightbulbs in his power compacts for 2yrs. i dont know his taank was looking so nice now its just slowly dieing. an suggestion would be great.