To calculate how many acs you need to hatch, find the range between your temperature in the hatching area, and -80. Divide this by 6, and boom, that's how many you need. Get an extra on just in case of temperature changes.

1 ac=6 degrees Celsius of insulation

100 melee on a otter= 2 degrees Celsius of insulation

3 100 melee otters= 1 ac

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