Hi all, I started keeping tropical fish about 2-3 weeks ago. The previous occupant of the tank was a goldfish. The tank is about 175 litres. So far I have added some new plants, 4 Rosy Barbs, 8 Black Neon Tetras, 3 Peppered Catfish and 1 tiny Angelfish.
The problems I'm having is that the Rosy...