I suck at breeding mice?

Is that a typical mouse tub for you? It is overcrowded, so, yes you are right, it will have a huge effect on breeding. Especially if your males are too busy pushing each other around instead of paying attention to the ladies.
Other than that, your stock looks real good...

Yes thats my normal stock when i cant sell them fast enough and with only one female eatign breeder size mice it sucks at times.

I have 30-40 mice i need to feed off. I been taking each tub back down to 2.6 and getting there slowly. And im noticing smell is going down slowly with less males musking.

A great addition to any mouse food is a big ole bag of oats from the feed store. 50bs is $8-$15, so it's not terribly expensive, but it's the main part of most show breeder and pet owner diets, and for good reasons. :)

What type of oats. My feed store has like 3 aisles full of food from rodents to horses.

How do you supplement the oats, on the hoppers or on the bedding. Never heard of using oats for them.

Any kind of oats, whole, rolled or steam crimpled are all fine. :)

You can put them in the bedding, I don't think the hopper would hold them. It will give them something interesting to do/eat, and might get their 'spirits' up again. That, and reducing the crowding a but with your next big feed-off should help. :)

There are some foods that actually increase the libidos of mice! But I can't remember them for the life of me. . .
I do know that dandelion greens are great for nursing mothers, though. I'll need to find what types of foods it was that makes them more horny. :rofl:

I started feeding them cheerios. As sole ingredient is oats. They love them and see how that works. I wont keep feeding this as its expensive food for them but will get the big bag for them.

Also ended up getting 200 mice today of new stock/blood. Got them all in 60qt tub in QT for a while to be sure its okay to start putting them into groups in mouse racks near the already established stock