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Raising fish in a landscape water environment requires a properly balanced ecosystem. If you have some concerns about whether your fish are thriving in your landscape water environment, read on to find out some warning signs.
1. Your fish come to the surface for air. Fish gasping for air at the surface can indicate that your fountain or pool may have an oxygen deficiency.
2. Your fish have slime, body sores, tail rot or other physical growths. This could be a sign of a bacterial infection.
3. You see tiny insects habitating the fish's body. Parasites like fish lice, anchor worms and gill maggots are visible to the naked eye.
4. Your fish do not eat or are scratching against the bottom or sides of the pond. You can't see a protozoan infestation, but when your fish is lethargic and has a loss of appetite, it could be a sign of a protozoan infestation.
5. Your fish looks bloated and its eyes and scales protrude. Your fish could have dropsy, which is an internal problem with its system.