Because your fish die before they get even remotely close to that size, at least the guy in the vid got it to a few feet, yours didn't even hit 8". If your fish all stopped dying, started growing, and actually achieved this size, which many of yours are capable of, what then? You will be 30x worse then the guy in the video because you will have 30 of these large fish in too small of tanks. Which would never happen, because, back to the main problem; your fish are unhealthy and drop dead long before reaching even mature size. Go ahead, prove me wrong, all you need is a pic of one large growing fish at mature size, that you raised from small.
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