Yesterday morning I woke up to watch my RTS having severe difficulties swimming, staying upright, .... It's always sad to see a fish dying, but what made the sight even sadder was my other RTS actively trying to do anything he could to help it's buddy out. That included trying to prop him up to try and swim, fending off the tiger barbs when they realized what was happening, .... He has passed on now. :( I was able to get my RTS a new buddy from the LFS so hopefully they can bond like the previous one.