Help with identifying 2 fish please!

[McRae]

Hi there. My fiance bought a few fish for our tanks and now I have 2 fish I cant identify. Thank you greatly for any and all help!

the guy with the yellowish tail in the first two pics...he likes to hang at the top of the tank


and the black and silver striped ones in the other two pics...they have a blush color on their bellies but it just wouldnt show in pics.

 

[Rivercats]

The two in the bottom pic's are krebensis.

 

[DragonFish71]

The yellow one that likes to stay at the top is a golden wonder killifish. I have a few of them, they're jumpers so be sure the top of your tank has no holes, kind of peaceful but can nip, and they are pigs when it comes to food.

 

[McRae]

thank you both so very much! i had noticed the killifish likes the top of the tank so thanks for the heads up on leapers!