That was my point. If there is a Front in there, it would have to be hiding in the rocks and considering the size of the tank I don't see much room for anything larger than a couple of inches to be hiding. Thus, how does the OP know that the Front is a fem?
I will say this, the one fish I did see clearly looked to be in great shape. Fins all extended.
The tets. are really aggro. had the chance to buy a proven pair @ 3-4". They had all other tankmates in a 125 in about a third of the tank. That might be the reason you can't see the Front.