b.c.f.c
Fishaholic
in ur sig it says you have 1 male and 1 female betta in ur 72 gal, i would advise you take your molly out of the 2.5 gal and put ur betta in the 2.5 instead and add the molly to the 72 gal.you should not have 1 male and 1 female bettas together as you can come across all sorts of probs but i advise you post this in the betta section as theres many people who will give you great advice there.