Because oscars are "line bred" for color, it doesn't mean that every individual in a spawn will have the same amount of the color they are bred for.
There are often a certain percentage of a spawn with less, to no red, and a certain % with more, but that's not always obvious right away.
Yours may have come form a red pair spawn, but been one of those less red individuals.
In many cases a breeder would need to have the patience to grow them out long enough to know for sure, if the color is set in.
Whether this extra time is worth that extra amount of cash needed to charge for the wait ,may be the determining factor.
A very red one might cost $20 or $40 more, and only be worth the wait if that's what the market will bear .
These days with oscars as plentiful as they are, would you be willing to pay that $20 or $40 more, when you can buy one "off the rack" for $5.
There are often a certain percentage of a spawn with less, to no red, and a certain % with more, but that's not always obvious right away.
Yours may have come form a red pair spawn, but been one of those less red individuals.
In many cases a breeder would need to have the patience to grow them out long enough to know for sure, if the color is set in.
Whether this extra time is worth that extra amount of cash needed to charge for the wait ,may be the determining factor.
A very red one might cost $20 or $40 more, and only be worth the wait if that's what the market will bear .
These days with oscars as plentiful as they are, would you be willing to pay that $20 or $40 more, when you can buy one "off the rack" for $5.