Helene, please don’t misunderstand me – I never had in mind to keep Paros and Boraras together in the 27 liter tank at the beginning. I thought about keeping them together in the 120 liter tank. I began to think about it in the smaller tank, when you wrote in your first answer
But I think, that of course it is possible, and sometimes really a very good idea. In your case, the 27 liter is ideal for a pair or a smaller group. My experience is that they can feel very comfortable with small tank mates such as boraras.
Now Kevin said
Hi I used to keep my Paros with small Rasboras. They make very good tank mates and in my opinion play the role of dither fish giving the Paros confidence to come out of hiding.
And as you see from my questions regarding tank/ flock size and food competition – I still have reservations ……….