PISCES 500 ,wet dry, has anyone seen one of these lately? I have one I picked up along with a huge refg. last week, it is probably twenty years old, and has been in storage for at lest 17 years. this thing is huge, it even has a small built in skimmer, and a rack for probes etc. I am trying to find some info on this thing, can any one point me in the right direction?