In some areas, they are growing in numbers, but not throughout the range, and not significantly. Things are somewhat looking up in other areas of their range, and there is slight hope for at least stabilizing existing populations in limited areas. Captive bred fish don't count toward the status of their population in the wild. When reviewing whether a species should be protected or not, several factors are measured, including habitat loss and rate of habitat loss over a period of time. Over harvesting over a period of time etc. etc. etc.
A perfect example of this is the Jardini and Leichardti. They are fewer in numbers in the wild than the Asian cousin, but because there is no threat from habitat loss or over fishing, and their numbers are sustainable, they aren't endangered.