Mine only would grow teeth if they ate good. New teeth usually come in after a good eating spell and growth spurt.
I used to have a GATF (6 inches) and took me 2x months to get it eat pellets with tinfoil bards as teacher fishes, after first 3 weeks it's turned on those barbs and killed them all and ate half their bodies. I waited for few days later and added 3 more tinfol barb bigger in size and around 4 weeks later it started to chase tinfol away to get its share of pellet stick. Beware that some GATF will never accept pellets so it's your call to give it what its wanted or seeing a dead GATFDay 19- Unfortunately still has not eaten.Still swimming around normally.
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