Just some quick info. Got a baby Tsn in a grow out tank with Jurenese and bichir. This is the thing my Jurenese had ick but recovered with a coppersafe treatment everyone survived by today I began to notice the tsn has started to develop a lump through his skin on its back. It's a small pimple rising on its back. Hard to take a picture of the such. TSN is around 7 inches now have had for about 2 mths now.