Overfeeding is the major cause of fish loss. Overfeeding results in the accumulation of waste due to uneaten food and increased amounts of waste produced by the fish eating more than they really need.
Overfeeding fish is so easy to do. First, we forget how small they are: our appetites are much bigger than their stomachs! Second, feeding is one of the only ways we can interact with the fish, so we tend to do it too often. Third, fish quickly learn that our approach often means food is on the way. They come to the front and top of the tank, appearing eager and hungry. Don't be tempted to think this is an indication that they are famished and need food immediately. Overfeeding is definitely too much of a good thing, and can lead to serious consequences.
To avoid overfeeding your fish you need to set a schedule and make sure everyone in the family sticks to that schedule. Also make sure you are feeding the right food for the fish you have. Finally make sure any fish sitters know the dangers of overfeeding and stick to your schedule. If you think you have overfeed your fish, you may want to call Deep Sea Aquarium Maintenance to come clean your aquarium.
