lettuce nudibranch

I just ordered a lettuce nudi and it has hints of red. Is that signs of malnutrition or is it normal?

Hello fellow Saltines, I thought I would share with you the marvels of this little Lettuce Nudi (I believe he might actually be a sea slug as opposed to a nudi according to webpages about these guys). My tank is about 15 months old and has been stabilizing on its own and the uglies have...

Hello fellow Saltines, Can anyone recommend supplemental feeding for Lettuce Nudibranch's? I am pretty sure they are general algae eaters and I read they can be fed Nori. Has anyone done this? Would I clip it to the side of the tank or a rock? Will they much on sinking algae pellets? If so is...