Why Maintain Fish Tanks?
Well, though this may sound like an easy question to answer, many of the pet fish owners overlook this important point. The responsibility doesn’t end by just purchasing a fish tank aquarium with lots of cute fish in it. Like every other hobby, or pet, maintaining the fish tank also requires little of the owner’s time and work. Neglecting the importance to keep the fish tank clean may result in even the death of your pet fish. But the right efforts put into this will result in an ever beautiful, and clean looking fish tanks.
Here are few hints which will be useful for your fish tank maintenance:

Additional care is needed if the fish tank contains many fish or the larger species which contribute more biological wastes. Excessive sunlight should be avoided which may cause overgrowth of algae. filtrations systems must be chosen even before purchasing the fish. These are necessary part of the fish tanks along with the heaters, if necessary. There are several types available in market and the ideal ones can be employed to remove the dirt and toxins from the water which reduces the cleaning process.

Over-feeding the fish apart from hindering the fish’s growth also makes the water shabby as the uneaten food particles settle down at the bottom of the fish tank.

There are few species of fish like sucker which feed on the algae present on the pebbles or corals used in the fish tanks. This can be of great assistance to the pet fish owners as they mitigate the cleaning efforts.

It also advisable that the fish tanks are not to be heavily decorated if the owner cannot afford to clean the additional decors used. Keeping it simple but clean would be more impressive.
Other Useful links:
Algae Eaters
Fish Tank Filters
Aquarium Water Treatments