It's the great thing about this forum I was going to ask the exact same question, but there's already a thread. I've had my blue dolphin about 5 months and they are growing but not as fast as I had thought
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How big did you get them? I have one that grew very fast, he went from 2 inches to 4 inches in a matter of about 4-5 months the rest of the other ones i got didn't grow too fast except for 2 females in another group they grew faster than their siblings and one female is becoming more dominant as she gets bigger..