Questions - Need some input

They look like algae grazers - have the mouth of an astrea snail, but are SUPER FAST. Shell has no spiral to it - looks more like a cupped hand or something. Anyway, I didn't think much about them until I found one 'spawning' in my frag tank. They release eggs or offspring or whatever directly into the water column. Since then, I have been executing them on a regular basis - but for every one I kill, I suspect there are 20 I don't see. Not sure if they're OK or not, but I just realized that ...

For flow and power consumption reasons, I'm considering making a change for my main system pump from the PCX-55 to the Reeflo Dart. At first glance, it seems that I may be ?doubling? my flow with an 8' head - and potentially consuming far less wattage. I know the spec for the GENX pump (an Iwaki knockoff as far as I can tell) says something like 170W - but my experience has been more like ~220-240W. Currently, I use the pump to feed a manifold that serves my main tank, my skimmer, my fuge, frag ...

I've ordered from saltwaterfish.com and liveaquaria.com. Both are good - any other recommendations/favorites?

I'm going to be out of town for an 8 week stretch next year and I'm really worried about my reef . Anyone have suggestions about what to do to give me some piece of mind? My options so far are 1) a local fairly reputable tank maintenance company and 2) the wife's little brothers (18 and 21) who are responsible, but not experienced with reefs and live an hour away. Both options have their problems as you may imagine... Any other suggestions?

I'm wondering if some type of drawable blind is the answer. I like being able to see my aquarium from the fish room side, but I don't like being able to see my fish room from the front of the aquarium. Any descriptions/pictures would be much appreciated!