festae owners, will this work?

[terror]

Hi,

Would i be able to keep about 2 pcs of festae with some silver dollars and plecos? or would they be killed by the festaes?
would likt to get about 2 pcs festae hoping to get a male and female?
my tank is an 8x2x2.5 ft tank inhabitants are 12 inch arowana, 15 pcs silver dollars, 3 pcs adult golden severums and 3 2 inch albino gibbiceps.

i have hugs drfitwoods in my tank. if i add the festae , will my silver dollars and pleco be in trouble?

thanks.