My 110 just cycled, I'm at xmas shopping with the misses, My daughter and Grandson of 9 wants to surprise me and buys me 2 new black with blue strip damsels for my tank, which he bought with his own money I get home and he's already put them in the tank, and suprise, yes, This is going to be a Reef tank, I've read not to put in damsel, but why ? can I get away with keepimg them in there, I'm not getting rid of them because they were a gift from my grand son, so what's the damage in keeping them.