+1 for Keyhole Cichlids, beautiful fish criminally underrepresented in the hobby.
As long as your filtration is good and filter well cycled, 50 will be fine i think.
I really like the Hikari floating micro pellets. Don't end up with as many bits falling to the substrate like with flake.
I uploaded it to another forum about four or five years ago, I guess someone saw it and started using it for their website. I don't mind, they...
Fun fact, the Bolivian Ram in that picture was one of mine from years ago.
I think you might find this useful.
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