I would go through a period, no and then, where a particular fish just won't eat for like a month or two, then one day it would start eating again.
I remember you telling me this the last time i had issues. This time im sticking to only feeding him the pellets i want him to eat....no giving in
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I had mine in a decent community tank from approx 4-10". That size difference has taken about 2 years. At about 6" he was moved to a larger tank and grew rapidly to 8". Now he is about 10" and I hope another 2 years and he'll max our above 12". I've never had a problem with him not eating food, but many times all the tank mates will eat a lot more than him. Other days he'll go crazy on food.