I have two now, and both were vicious snail destroyers the instant I got them in the tank! I'm only feeding them snails right now since I have a BAJILLION. However, I feel they're not getting enough food from just the snails, so I'll be getting frozen bloodworms this weekend.
As for vacation feeding, I get a fishy friend here on campus to babysit for me, but I'm only going to be gone for 5 days or so.
I'm glad to hear yours don't touch the shrimp, Borikuan! I'm wanting to get a few cherries and maybe an amano or two to help with the algae I got going on in the tank, and was slightly frightened for them.
As for whether or not thissun's female, I just don't know!!!
Here the two are side by side, in two different photos.
The one in the original photo is on the right in both.
I had planned to get two females, but now I have a suspicion that I either have a male and a female or maybe females of the two different species, especially after seeing this image from dwarfpuffers.com:
Either way, they are awesome :]