an aggressive molly??

i've noticed a strange behavior since the addition of my blue damsel and lawnmower blenny (oh, and a hitchhiker molly lol).. i've had a medium sized molly, and a tiny one for a while... alright... that was just a background... anyway, now when i go to feed my fish (i use "aquarian" flake food in the blue container), the bigger molly constantly attacks the other 2 mollies for about 20 minutes after feeding them... i would think of the fish i have, the damsel would be the aggressive one... but he's just more "curious".. he'll follow a fish (not chase or nip or anything like that) until that fish goes into a crevice or hole... then the damsel would turn and go about his business... i think of it as "hey, where ya goin? oh, i don't wanna go there".... the bigger molly won't mess with the other fish, and i've never noticed him do this before... but now its like he tries to ram into the 2 smaller mollies... and like i've said, this only happens for about 20 minutes... my guess is that, even though the damsel isn't aggressive, he's still a heck of a lot faster, and he gobbles up the food in no time, not giving the molly a chance to get any, and the molly gets ticked and takes it out on the smaller fish.. also, i guess the dark green flakes are algae based or something, because the damsel will swim up to the green ones, look at them for a sec, turn around and suck up the white/yellow ones like there's nothing to it... that in itself is amazing to me.. how a fish like that can have a preferred taste... if anything, i figure he would "taste" the food, and then spit it back out... but not look at it and turn his nose up at it

 

fish can get funny when new fish come in to the tank it's a territory thing they should be fine it's like some one new come's in your home and just start's liveing there your going to be WTF give it time

 

By the term blue Damsel I hope this was not the one you put in there ? Chrysiptera cyanea They tend to get rather large and mean and never ever put a second on in there as they will mate and then own the entire tank..

 

i'm not sure what kind of damsel it is... its just blue, with a black dot, and white fins and tail... he's pretty small right now, probably 1.5"... seems to be doing well in my tank... when i first put him in, i noticed some of his tail was missing (nibbled off, pinched, whatever), but now he looks great, and its only been a couple of weeks! right now, he's probably my fav fish, keeps to himself, but as i said, curious, and i like watching him in his "bed" at night... he found a piece of liverock with a hole just big enough for him to fit in, and that's where he stays at when the lights are out...