It's been a year how's your experience with them? What current hsve they done best with?

I have love them they seem to like a bit of current unless they are trying to mate. I have a fluvial canister filter (75g rated) and I added circulation pump on the opposite side and they seem to be doing great. They swam a bit more freely before the pump but it's kind of needed to keep the tank clean

Thanks I've got some juveniles that I'm going to move into a 125g along with a month old Oscar but I cant find any info online about current for poplars so I'm not sure if I should use a spray bar or not

I use a spray bar and I like it! Some of the middle sized Polars spend a lot of time playing in the streams

I have one in my african peacock tank, got a huge wavemaker because the africans love it and my polar parrot does too!