
Mine went from 1.5" juvies, to about 7" in 7 months, with multiple, daily smal feedings, and every other day water changes to keep nitrate minimall.
They were also grown out in a 150 size tank, with some other "non-similar" looking juvie cichlids.
Flow was provided by a 1500 gph sump pump, and an extra powerhead.


If i were to do it again, I would probably use even more and stronger power heads, to create more flow than before,
There was some intraspecies aggression in the 150 as they attained size, which I attribute to not enough energy being dedicated to fighting the flow, so allowed them to became focus that excess on themselves.
The shot below is the kind of habitat they may be found in.
Although the video below is aimed at reef keepers, it has some interesting info that can be applied to rheophillic species .
Pump Angle: The Right Powerhead for the Right Flow, Used the Right Way – BRStv Investigates Flow.