Fish recommendation

Hi. I'm looking for recommendations for a few small fish for the
following tank. It's a 20g long with an eclipse hood, heavily planted
with fluorite substrate. It currently houses lots of amano and cherry
shrimp, zillions of MTS and a couple of small Botia kubotai (I think
they're still there, haven't seen them in a while).
I've had really bad luck with Melanotaenia praecox in that tank, all the
rainbows in my other tank thrive, but they just go belly up in this one.
I was thinking of tetras, but I'm not sure if they'd be ok with the
turbulence that the eclipse hood generates. The hood fits a 30g tank and
it has a pump to match, so it's a bit overpowered for a 20g long. Shimp
seem the like the current though... taking trips around the tank like in
a roller-coaster.
Any advise would be most appreciated. Colorful fish would be a plus.
Nothing that would eat my shrimp of course.

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Victor Martinez
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