I have a decent size tank its smaller then 40 gallons and slightly over stocked. most of its inhabitants are varies juvenile cichlids. i have algae eaters and a pleco. it has been established for about 6 months, but i have yet to see any algae in the tank except on very small part of the heater. is there a problem with my tank or are the algae eaters doing an awesome job? from varies posts i have seen, algae is usually present by now. my water is crystal clear and i do regular water changes, could there still be a problem with my water or tank?

