Ive been using giant danios in my sa/ca tank.... jag ,black belt, JD, RD, uro, bleekeri ,3 convicts , GT, firemouth, Flower horn, texas, and a rainbow, i got 10 danios from petsmart about 5 months ago so far i've lost only one....i tried using silver dollars and barbs they got crushed within a week
Used to use Giant Danios and they;re usually ok when light is on but expect to find some missing if you leave lights off for the night. And I have to agree with Tinfoil barbs being durable dithers and the bioload cause they produce. They usually eat as much if not more than most cichlids do.