I have just bought 2 Silver Sharks to add to my tank of 2 Pearl Gouramis, Moutain Minnows, Tetras, Red Tailed Black Shark, Male Guppies and a Plec and 3 dwarf African Frogs. Now, I ASKED the fish shop if i could add these 2 Silver Sharks to a tank with a Red Tailed Black Shark and they said I could. Since adding them all he's done is chase the 2 newies and they are starting to look a bit battered and even have a few scales missing!! I dunno what else to do for now so I've used the bag the 2 fish came in and put the Black Shark in there so he can't attack them. But is that OK? At the mo, cos Black cant get to the Silvers they are swimming abou t quite happily! How long can I keep him in the bag for? Should the Black Shark REALLY be ok with the 2 Silver Sharks? Or would it be best to keep him in the bag till the morning and take the 2 Silver Sharks back? I'm worried cos it looks like if I let him out the 2 newies will be mince meat by the morning! Anyone who can gimme a quick answer would be VERY much appreciated! I don't want any DEATH!!!!