blue dolphin cichlid

My albino blue dolphin and my 1 year old had babies. Not sure how old the albino is as I got it as an adult. Had the male since around 2 inches. In 3 weeks they have gone from 1 cm to 2 cms. How fast will they get to 2 inches or 5cm? See pics, 25 babies.

Not interested in trades Redtail Rainbow shark fish - $25 Dolphin Moori African cichlid - $35 African Leaf fish - $70 14" Silver Arowana - $150 16" Clown knifefish - $125 Rocket gar freshwater barracuda - $80 2 electric blue acaras not sure if one is male and female...

So, we bought a new blue dolphin (we presume female, but it's so hard to tell) and a new yellow lab for our tank. We purposefully got a blue dolphin the size of our other 3 in hopes that it might acclimate better. The other 3 blue dolphins have grown up from very young juveniles for almost 2...