Hi, if the festivum is in a 10g with 2 kribs and a sev I imagine the nervousness will be because the tank is over crowded with teritorial fish and I am going to guess the festivum will be bottom in the pecking order. I know this is only temporary but its obviously affecting him in a bad way here.
Also I can not stress enough how important it is that you dont put the festivum in a 27g with Julidochromis that is a really really bad idea. I would get some apistos or bolivian rams to go with the festivum in a 27g. Mixing riverine africans with south americans is never ever a good idea except in a few situations and this is not one of them. I kind of agree with Bricko about the 50g thing being ideal but I think a tank around the 30g mark is an absolute minimum.
I would do this upgrade as soon as possible because the stress can only lead to bad things like disease and death. And wait till you get a bigger tank before you get dithers but they will help to bring them out of their shell a bit.
Wills
Also I can not stress enough how important it is that you dont put the festivum in a 27g with Julidochromis that is a really really bad idea. I would get some apistos or bolivian rams to go with the festivum in a 27g. Mixing riverine africans with south americans is never ever a good idea except in a few situations and this is not one of them. I kind of agree with Bricko about the 50g thing being ideal but I think a tank around the 30g mark is an absolute minimum.
I would do this upgrade as soon as possible because the stress can only lead to bad things like disease and death. And wait till you get a bigger tank before you get dithers but they will help to bring them out of their shell a bit.
Wills