Niger Trigger

they get to about 20" and 180 gallons is the smallest i've ever seen anyone keep an adult in.
 
I have a Niger Trigger and every where that I've read that they get about 12" I think 20" is a little two large. With that said some triggers do grow to that size
 
i saw a documentary about a lady free diver who swam past one and it was about the size of a small car
 
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