Hello!
First of all, I would take them off the bark chips. There is a risk of impaction if they swallow some, plus the stuff holds in humidity a little too well for them, if it ever gets wet. If they are adults I would switch em over to fine sand, or cage carpet. Just to be safe!
Second, pinky mice are ok to feed IF the geckos are big enough. also, they are not as a staple food and should be fed very sparingly, like one pinky every 3 weeks or so since they are so high in fat. But they are definately not necesary.
Be careful, when males are housed with only one female, he tends to stress her out too much by constantly trying to breed with her. If i were you I would add one or two more females to the tank (if the tank is big enough. a 20 long is good for 1.2 or 1.3 leos, in my opinion) to reduce the possible stress on just one female, or seperate them. Good luck! =)
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~Melissa~
1.2 Leopard geckos
1.0 Bearded dragon
1.0 Hog Island Boa
0.0.1 crested gecko
1.0 Ferret
0.1 Chinchilla
1.0 Chinese Praying Mantis