How Big Can Angelfish Grow? A Detailed Look at Adult Size

Angelfish have an elegant bearing and graceful swimming style. Although they lack brilliant colors, their popularity among aquarium hobbyists is unmatched by any other tropical fish. It seems there has never been a case of a hobbyist who has kept tropical fish for many years without having kept angelfish. Angelfish are almost synonymous with tropical fish. Let us take a look below at how big angelfish can grow!

How big can angelfish grow?

Adult angelfish usually have a body length of 12-18 cm. When kept in captivity, ordinary angelfish hobbyists can generally raise them to around 15 cm. Some professional angelfish keepers are said to raise them to at least 20 cm, and some can even reach 30 cm. Although how big angelfish can grow depends partly on genetics, there are also acquired human factors. This requires dedicated maintenance during routine care, attention to testing water quality and the filtration system, frequent water changes, cleaning the filter, and creating a good living environment for angelfish. If any problems are found, they should be dealt with promptly to avoid endless trouble.

How long can angelfish live?

The theoretical lifespan of angelfish is 5-6 years, and wild angelfish can live around ten years. However, the actual lifespan of most angelfish is 4-5 years. Those kept in captivity have shorter lifespans due to factors such as inbreeding, and generally begin to show obvious signs of aging at around 3 years. This may be related to abundant food and a fast metabolism. Therefore, it is better to raise fish from a young age, as it brings a sense of accomplishment and can also slow down the replacement rate. However, it is estimated that not many people can raise fish until they reach old age.

How should angelfish be kept?

1. Mixed keeping: Angelfish have basically no requirements for water quality and can also be kept with most fish, but it is best not to keep them with tiger barbs or guppies, because these fish may nip at angelfish. Keep the water temperature at 24-27°C.

2. Bait: Most angelfish species mainly feed on animal-based bait, with pellet feed as the staple, and the bait differs depending on the fish's body size. For angelfish with a body length of 3-12 cm, the bait is mainly bloodworms, supplemented by tubifex worms, red worms, and yellow mealworms. For angelfish with a body length above 12 cm, choose slightly larger bait, mainly red worms, tubifex worms, yellow mealworms, small live fish, and so on.

3. Feeding: Angelfish generally only need to be fed 1-2 times a day, and the amount fed should preferably be finished within 5-10 minutes. When keeping angelfish in large quantities, they need to be fed 2-3 times a day. During the breeding period, brood fish are generally fed 3-4 times a day, with the amount fed preferably reaching 70-80% fullness, feeding less but more often.

4. Water changes: Because the workload of water changes when keeping angelfish is relatively large, topping up with pre-mixed water is often used. Generally, the water replaced accounts for 1/4-1/3 of the total water volume, and the pre-mixed water is slowly poured in along the tank wall.