I'd go with a school of Denison's barbs if your water conditions are suitable, or the rainbows for hard, alkaline water.
^^^^Please click the eggs/dragons, thanks.
BRAND NEW NEVER OPENED NEVER USED!
"EHEIM Quick Vac Pro Automatic Gravel Cle ...
Everything is brand new, tank only lightly used
for aquascape. I purchased a larger tank for my
Offering a beautiful blue and yellow damsel.
Approx. the size of a gold dollar coin. He's
being a b ...