Thanks, Fleshy. I did some reading up on the Hermits and I'm hearing a bunch of horror stories. I guess for now I'll just leave the 2 hermits I have in the tank now and call it a day. I was in the Petco today just browsing and saw they have Astrea Snails that are quite large compared to my hermits. Would I have to be worried about my hermits attacking them?
No worries, glad to help. I am of the opinion that most hermits wont kill snails unless they are starving, or the animal was already dead/dying. Like I said, I only use blue leg hermits, and if you have those, you should be fine.
Are there any safe crabs to put on the reef? I like the little Sally Lightfoots but saw they can be dangerous for a reef, plus my tank isn't big enough.
Yes, but almost all of them are opportunistic, and mean. At least in my experience. I have had several emerald crabs that were reasonably well behaved...ie...I never noticed them attacking or killing anything. Also know of several people who kept sally lightfoots with reasonable success.
Those nudibranches I see at the store are so incredibly awesome looking, but I see they are a pain to keep alive longterm. Are the lettuce nudis the easier of the bunch?
I have no experience keeping nudis...but I wouldnt recommend them to the beginning hobbyist. Most only eat one thing, and when that thing is out of your fish tank, they will die. I dont think they make very good aquarium candidates.