Angelfish will get big, fast. Knowing how big they can get before you put them in a tank is important for keeping fish healthy while saving you from frustration later on. If you keep an angelfish in small tank after it becomes too large for it, its stunted growth is permanent. I know…I’ve done it!
Angelfish grow fast in their first year because of how they develop. They are territorial species and require room to claim territory and mate (in the wild). Aquariums cause them to grows quickly because this natural inclination is limited by physical size of tank. A juvenile angelfish will transition from being two centimeters to a sub-adult at ten or more centimeters. This all occurs primarily within one year.
How Big Do Angelfish Get?
Then, once reaching young adulthood, their height become apparent. Because their fin shape is triangular, it expands vertically causing the fish to appear longer rather then simply wide. Too many hobbyists learns the hard way that their tanks aren’t tall enough.
Angelfish are also vertical swimmers. Tank dimensions is just as important as total volume. If you have a wide, shallow bowl, even if it holds many gallons, your fish will still be stressed because they are cramped. Their fins won’t be able to spread out freely. They will constantly be bumping into filter inlets and other tank wall.
The chart indicates recommended sizes at each stage. Adult pairs require at least fifty-five gallons. That’s the minimum amount of space required. It has enough room for them to swim around without being too cramped together. It has enough water volume to dilute waste. Without proper dimensions, growth halt permanently. Immunity decreases and stress hormones increase.
Most stunting issues stem from poor feeding practices in infancy rather than genetic defects. How big they get depends on diet. Angelfish grow fast when fed a lot of protein. Dry flakes sustain life but don’t promote fast growth. Baby brine shrimp (live or frozen) are very rich for the first several month.
The building blocks for fish is food. The aquarium is house; food is the construction team. Feed ’em wrong and they won’t develop right. Stunted angelfish have more to do with poor feeding as infants then genetics. Take good care of adults and they’ll solve their own issues. But if you starved them as babies, they wouldn’t of be able to recover from low-protein diets that stopped their growth at 6 months old.
Angelfish are sensitive to toxicity. Poor water quality restrict their growth potential. What other species tolerate (e.g., tetras) might be harmful to an angelfish’s tissue. Metabolism is also slowed down by trace amounts of toxins. To ensure a healthy growth, you must change your tank water regularly.
Stressing the immune system through thermal shock (unstable parameters) are bad news. Keeping stable parameters helps them maintain a normal body temperature, which is somewhere between twenty-six and twenty-eight degrees Celsius. This helps with good digestion. Any fluctuation interferes with it, resulting in sluggish appetite and slow gains.
Keep in mind that there’s only one body plan, various types look different, but require similar care. For example, although they may look very different, you take care of silver, marble, koi, veil-tail angelfish similarly. The exception is that if you get the veil-tail type, you must ensure the tank can accommodate their longer-than-normal fins. A double-veil will require even more room for its fins. While a standard adult will fit in a typical medium-depth tank, its longer tail could tear off or get caught in equipment. Buy the variety that fits your tank size (and not necessarily which looks best).
Angelfish are demanding but worth the effort. You have to plan and be patient, knowing they will eventually outgrow the tank. Provide a clean water environment and a high-protein diet. Also, respect their need for a tall tank. This will go far toward keeping an angelfish happy and healthy. A healthy, un-stunted angelfish has the most attractive fins and bars. Feed them well, start off with proper tank size from the beginning, and they’ll turn into strong specimens. They’ll have room in which to expand not only physically, but spiritually.
