oscar growth rate after about 7 - 8 inch.

Sounds normal to me. Mine grew really quick till about 8 or 9 inches then slowed alot. It was wierd, he seemed to get growth sperts like a teenager gets. Was very hungry for a few days to weeks then slowed down. Mine hit about 11 inches at his 1 year b-day (day that I got him). He is hardly growning anymore but "bulking" up more. Just a stomach with fins...

Stias'
 
Well not exactally 1 inch per month but averaged through a year, ya. Mine really went fast at times, double the inch a month rate but never was steady at it or for a month straight. Feed him alot of worms, krill and shrimp and he will grow fast.

Stias'
 
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