I'm not sure what fish they are... There are 9 tetras, three little blue things (barbs?) and three zebra ones.
Sick fish is a rosy barb (by process of elimination) http://www.thetropicaltank.co.uk/Fishindx/rosybarb.htm and he's getting worse and worse by the minute :(
:( Thank you, I figured things weren't good but thought there might be something I could do. He's isolated in a plastic bowl in the top of the tank with some of the tank water in it. I think the tank is 40 litres but I could be completely wrong and she's got about twenty fish in all.
I can't...
Help! One of my housemates fish looks dreadfully sick. He's got big bulging eyes with a cloudy film over them and he's floating upside down gasping. He's been trying to swim but can't stay the right way up and keep going manic spinning round and round in circles and then stopping and just...