Anyway i've kept those long ago....nice fish to keep but its rather sensitive to water quality due to its nature is in a high dissolved oxygen water such as at rapids & mountain rivers (upstream). So my 2cents for any one who like to keep this fish is to have a proper and good filtration first.
With good and sufficient food, it can grow up to 80cm....Try give it natural proteins...(grasshopper/worms/small schrimps/feeder fish)Cheers