Duncan Arms plus algae

[SmokinReefer1]

Hey guySo I've been feeding my duncs with phytoplankton and reef roids directly with baster. The arms of my Duncan's have never been long. But they basically non existent. But they are doing awesome and have multiplied by 5 in 2 months. Started with 5 heads now I have 25. Is it because I'm feeding them too much? Help I can't leave it alone lol

 

[T-J]

Pics?
I have a Duncan that I never feed directly and it has great looking heads. Also, some Duncans have shorter arms than others.