i made a little progress on this build this evening. first, i finally found the pump i wanted to use, of course it was in a bin at the bottom of a stack labeled "Christmas Decorations". no clue how it ended up there, but ok. LOL once i filled the tank with water, i figured out where i wanted the water to exit the tubing and then drained and dried the tank. i placed it on it's side and started adding more rocks to it. after i got those siliconed in, i foamed the areas between the rocks and that is were we stand now. it looks something like this:


sorry for the poor pics, but it was tough getting pics upside down. when i can stand the tank upright in a day or two, i'll take better pics.