A poor diet would be only feeding them the same thing constantly with no variety & no supplements. And I don't understand how one little 3" frog can make that big of a difference in a tank--did you even look at the picture in the link that I posted? The tank is plenty large. My frogs have been in the same enclosure with the same varied diet for over a year now--neither of those things are the cause of the health issues. So, can you please stop being so rude & accusing me of being a terrible pet parent and actually focus on the frikn issue that I am asking about??