Frequently Asked Questions
The most-asked questions about Blue velvet angelfish.
What exactly is a Blue velvet angelfish?
It is a captive-bred color morph of the freshwater angelfish (Pterophyllum scalare), recognized by its deep blue-purple body that takes on a soft, velvety sheen under aquarium lighting. It is one of the most popular ornamental variants in the hobby.
Where do these fish come from in the wild?
The Blue velvet line is a selective-breeding color form, so it has no wild population of its own. Its ancestor, the scalare angelfish, is native to slow-moving blackwater rivers and tributaries throughout the Amazon basin in South America.
How big do they get as adults?
Body length typically reaches 6 to 8 inches, and the tall dorsal and anal fins can add another 4 to 6 inches of vertical spread, making them one of the more imposing freshwater species in a community tank.
What tank size and setup do they need?
A minimum of 55 gallons is the standard recommendation, with open swimming space, gentle filtration, and a few broad-leafed plants or rockwork to provide visual cover. They do best in a planted or lightly decorated setup rather than a bare tank.
What water parameters should I target?
Aim for 78–84 °F, a pH around 6.0–7.0, and soft to moderately hard water. They are fairly tolerant once acclimated, but stable parameters reduce stress and color-fading issues.
Are they aggressive toward other fish?
They are semi-aggressive: they will claim a territory during spawning and may nip at slow-moving or very long-finned neighbors. They generally coexist well with similarly sized, hardy tankmates that are not easily bullied.
What should I feed them?
They are omnivores that do well on a mix of quality flake or pellet, frozen brine shrimp, and occasional live or freeze-dried treats. A varied, protein-inclusive diet supports their coloration and overall health.
How long do Blue velvet angelfish typically live?
With stable water quality and a proper diet, most individuals live 5 to 10 years in captivity, and some well-cared-for specimens can push toward the upper end of that range.
How is it different from a silver or black angelfish?
The underlying species and care requirements are essentially identical; the Blue velvet line simply carries a darker, more saturated blue-purple pigmentation that gives the body its characteristic velvety look. Behavior, size, and lifespan are the same as other P. scalare morphs.
What is the best first step for a newcomer wanting to keep one?
Cycle a 55-gallon tank, let temperature and pH stabilize for at least two weeks, and choose compatible tankmates such as larger tetras or barbs before introducing the angelfish. Avoid pairing it with small, long-finned species that are easy targets for nipping.