Red Koi Angelfish are a selectively bred variety of the common angelfish (Pterophyllum scalare), known for their striking red and white marbled patterns reminiscent of koi fish. Here's some information on caring for Red Koi Angelfish:

1. Appearance:

   • Red Koi Angelfish typically have a predominantly white body with patches or speckles of vibrant red coloration, resembling the patterns seen in koi fish.
   • Their fins may also exhibit red coloration, adding to their overall striking appearance.
   • Like other angelfish varieties, they have a laterally compressed body with elongated fins and a graceful swimming motion.

2. Tank Setup:

   • Provide a well-established aquarium with plenty of hiding spots, such as plants, driftwood, and caves. Red Koi Angelfish appreciate densely planted tanks that mimic their natural habitat.
   • Ensure the tank has adequate space for swimming, as angelfish are active swimmers and appreciate open areas.
   • Maintain stable water parameters, including temperature (75-82°F or 24-28°C), pH (6.5-7.5), and water hardness (slightly soft to moderately hard).

3. Diet:

   • Offer a varied diet consisting of high-quality flake or pellet food supplemented with live or frozen foods such as bloodworms, brine shrimp, and daphnia.
   • Red Koi Angelfish are omnivorous and will also appreciate vegetable matter in their diet. Blanched vegetables like zucchini or spinach can be offered occasionally.

4. Tank Mates:

   • Red Koi Angelfish are generally peaceful but can be territorial, especially during breeding.
   • They can be kept with other community fish species of similar size and temperament, such as tetras, rasboras, peaceful cichlids, and bottom-dwelling species like Corydoras catfish.
   • Avoid keeping them with aggressive or fin-nipping species that may harass or stress them.

5. Breeding:

   • Angelfish are known to pair off and breed readily in captivity.
   • Provide a flat surface, such as a broad leaf or a piece of slate, for them to deposit their eggs.
   • The parents will guard and care for the eggs until they hatch, after which they may continue to protect the fry for some time.