My silver Aro is 18"+ and is about 2 years old. The biggest I've seen is massive 3.5foot almost a foot high and around 5" thick silver aro at LFS, they wanted $900 for it.
Op is talking about a jardini and not a silver. Silver aros average about 2 feet in a little more a year. They have growth rate of 3 inches a month on the high side but its very common. Jardini's grow slower and dont nearly get as big. But just wondering what tank your silver is in? Roughly a two year old silver should be a fully mature aro.







