Fining problem

I just fined a batch of Steuben with gelatin.  The wine has gotten cloudy,
evidently not enough tannin in the wine will make it cloudy.  I assume that
is the problem from what I have read, if tannin is low =, it should be added
befor efining with gelatin.  Can I still add tannin to get the wine to clear
or is there something else I can try?

Thanks