Hi,
I did a lot of reasearching and here is what I got.
The first pic in your first post is some kind of Rasbora I think, maybe a Spot-Tailed Rasbora (Rasbora caudimaculata).
The second pic in your first post is a Jack Dempsey for sure.
The third pic in you first post is a Red Zebra.
The first pic in your second post I think is a Spotted Headstander (Chilodus punctatus).
The second pic of your second post might just be a Afra Cichlid (Cynotilapia afra). If you type in that at google it might pop up one that looks just like yours, but it's yellow. It's the same species it's just a different color morph. Afra Cichlids have many different color morphs.
The third pic in your second post is a Auratus Cichlid (Melannochromis auratus). Like the Afra Cichlid, the Auratus Cichlid has many color morphs, and the one that pops on your screen maybe black, but it's the same species.
I hope this helps!!!
Cory Lover