You will never again see your plecos with that! haha especially if you make it really good.i like the second and fourth one. just so you know, a reasonably tight fitting cave on your pleco will be better. the caves i got are more like the second one, as in have little off tunnels of different sizes. you still gotta be careful your pleco doesnt get stuck, but a lot prefer tight space. good links honda. when i make a background (from the polystyrene and cement and what not, im guna try and hollow out a cave system in there, i think that will be awesome
i think i'm going to build a cave with plenty of tunnels so my fish will be relly happy