I have heard Bob say a fish will gain weight 1:2 on feed. Is this true at differing water temps?

For example:

5 fish one each in 40, 50, 60, 70, 80 degree water eating 1 pound of feed, all will add 0.5 pound of weight? Will fish in colder water gain less, more, same as fish in warmer water eating the same amount of feed?????

Last edited by BrianL; 10/24/17 03:43 PM.

1.8 acre pond with CNBG, RES, HSB, and LMB
Trophy Hunter feeder.