They love high current but they don't need it to thrive and they're not as delicate as internet says I think. In the video, cory says that he keep them with his goldfish and no problem, they even spawn. He even keep them in his 800gallon with clown loach at high temperature and they still spawn and no problem. They just need clean water like all fish should have. I am not an expert, I just say what was in this video and I think cory is a good source of info too, he talks about this fish from his personal experience and not what he saw on the internet.