Hey all, i Have recently decided that i need to add some new hiding places for my 2 Wolf fish (5.5" ery ery and 3.5" ery SP) out of pvc to put on the bottom AND Hopefully near the middle. im thinking about making it stand on the bottom and have a few Hiding places where they Can Get in and away from each other, and hopefully where i can watch them because lets face it, if you cant see them its hard to enjoy them. any thoughts suggestions? and do's or Donts for constructing this "perch"?