Bottom dwellers tend to be safer from a Jardini's harm. Once a Jar knows it can have its way with a fish IT WILL DO SO CONTINUIOUSLY!
Opiate,
If you really are worried i would seperate the new Jag as the aggression wont stop, sooner or later one will have to go or die...
Agreed.
If your jar starts picking on bottom dwellers you really have no hope at all.