Pond Fish

Discover everything about pond fish at Velda. From the best fish for beginners to specific fish food and advice on fish diseases. Bring your pond to life today!

White spot

White spot on fish The most common fish disease is white spot. It is caused by the ichthyophthirius parasite. As the resistance of the fish decreases, these parasites can develop on the skin of the fish. The parasites lodge on the mucous membrane of the fish, causing clearly visible white spots. The disease is sometimes […]

Hole Disease

Hole Disease Hole disease in pond fish can be recognized by the round spots on the body of the fish. In all cases, this condition is a bacterial infection. The onset of this infection can come from poor resistance of the fish, combined with poor water quality. The pathogens that cause the disease are always […]

Gillworm

Gillworms Gill flukes or Dactylogyrus are parasites that mainly nest on the gills of koi. The gill worm is therefore a very dangerous parasite that does not grow larger than 0.1 to 0.3 mm. A human hair is about 0.05 mm thick. In appearance, the gill worm resembles the skin worm or Gyrodactylus. Therefore, they […]

Sturgeon

Sturgeon A sturgeon needs special sturgeon food because its mouth is at the bottom. Therefore, sturgeon food is designed to sink to the bottom. Sturgeon likes to be eaten by sturgeon. The feed has a high energy value and is tailored to the sturgeon’s metabolism. It contains important vitamins and trace elements for the sturgeon. […]

Carp aphid

Carp aphid Carp louse is a small crustacean-like animal that nests on the skin of carp-like fish, such as koi, as well as goldfish. The animal is detectable with the naked eye. Fish that are infected develop red spots. They also start behaving differently, such as rubbing on rocks and jumping above the water. Carp […]

Sturgeon feed

Sturgeon feed A sturgeon needs special sturgeon food because its mouth is at the bottom. The feed sinks to the bottom and has a very strong smell, so it resembles its natural food. For all species of sturgeon there is special sinking feed with high energy value tailored to the metabolism of the ornamental pond […]

Abdominal dropsy

Abdominal dropsy Abdominal dropsy in koi, goldfish or other pond fish can be recognized by the bloated belly. In addition, the fish’s scales protrude, the fish develops balance problems and the eyes may bulge. The disease is caused by a bacterial infection, a tumor or kidney failure. Poor water quality can be a cause. Treating […]

SaniKoi®

SaniKoi® koi food With your koi, of course, you have your best interests at heart. Therefore, only the best feed is good enough. With SaniKoi® you choose for real top quality. It is koi food with a rich composition and unique extras. Because in all SaniKoi® koi food is SaniComplex. This contains chicory components that […]

Koi diseases

Koi diseases Koi diseases are common, especially when the water composition or water quality is not good. When koi are infected, it is important to look closely at the symptoms and determine what condition the fish have. A sick koi can be recognized by lethargic behavior or spots on the skin; other symptoms include scouring […]

Fin rot

Fin rot Fin rot in pond fish is a condition that damages the fins of the fish. It is easily recognized by frayed fins. In addition, the skin may become dull and bloody spots may appear near the tail. It occurs due to a weak condition of the fish that allows the bacteria Pseudomonas or […]

Fish diseases

Fish diseases Fish diseases are usually caused by bacteria, viruses, parasites or worms. When fish are infected, it is important to look carefully at the symptoms and determine what condition the fish have. A sick fish can be recognized by lethargic behavior or spots on the skin. Other symptoms of fish diseases may include scouring […]