Harlequins are a bit big for this tank, which is why espei rasboras (who look almost identical) would work much betterAn even better choice would be ember tetras as those stay even smaller!
mmm I wonder if that's what mine are then, as I have them in my old 35l biube-the are only about 1" long in the body, but the lfs said they were harlequins
Carole x
They are both the same colour under the same lighting when fed the same food, in my experience
Also my harlequin rasboras all grew from 0.5" to 1.5" in about one month after I bought them.. I hear that they have the potential to grow to 2".
