Hi, I have been keeping fish now for just over two months with my young son, and was greatly enjoying it, but we have hit a problem.
I had started off with 8 Harlequin rasbaras which have been living happily in the tank. Last week I bought 6 neon tetras on last week, and it has brought nothing but stress. The tetras are being nipped and eaten - not sure if by the rasbaras or the tetras themselves, and I have lost 4 so far - each has had it's tail torn off. It has been a real sad sight - I have found them stuck next to the filter inlet and unable to swim.
So now I have two tetras and seven rasbaras,. and I fully expect the tetras to die off soon as I know they like to be in large numbers. But there is no point in buying new tetras and having the same thing happen - looks like I'll just have to live with the rasbara I have.
Is this normal behaviour? Everything was going well before the tetras came. Should I just replace the tetras ( and if not with tetras then what with?)
I have a37 L tank, by the way