Why are my koi fins turning red?

Fin Rot Symptoms Fin rot often starts with red streaks appearing on the fins of a koi. As the infection progresses, it can eat a koi’s fins all the way down to the fish’s body. The infections that cause fin rot can spread to the koi’s body and kill the fish within the week.

Why are my koi losing their color?

One of the most common reasons koi may be losing their color is due to poor quality food and nutrition. In fact, 9 times out of 10 a koi purchased from Japan (or elsewhere) that is changing in color is due to poor diet and/or conditions in their new home.

Can koi get their Colour back?

Some koi will naturally change in color throughout their lives. Most notably amongst the change artists is the Kumonryu. With age and changing water temperature, this koi will often shift colors, losing color or gaining more throughout its life.

How do you treat red fins on koi?

Give it an anti-bacterial treatment, such as CrystalClear WipeOut, that’s formulated to prevent and control fin rot. Be sure to add plenty of aeration and circulation to the water, as well as some Stress Reducer Plus or Pond Salt (1 teaspoon per 5 gallons of water) to soothe its stress and help it recover faster.

What causes fish fins to turn red?

The most common causes of fin rot are poor water quality and improperly-low water temperature. Overcrowding the tank, feeding outdated food, overfeeding the fish, and moving or handling can also cause stress that leads to fin rot.

Why are my fish’s fins turning red?

Ammonia poisoning can happen suddenly or over a period of days. Initially, the fish might appear to be gasping at the surface for air. Their gills will take on a red or lilac color, making them look like they’re bleeding. In some cases, you might find fish laying at the bottom of the tank with clamped fins.

Why is my koi turning pink?

Koi fish tend to turn pink due to an underlying disease, such as Bacterial Hemorrhagic Septicemia, Fin Rot, and Pseudomonas infections. However, Koi fish may also become pink due to ammonia spikes, color-enhancing diet, stressful conditions, and sunburns secondary to direct sunlight.