umm well im sitting here at my computer and my big (9in) ruby alino oscar and my 7in red tiger oscar are showing some very strange behaveier. my ruby has cleared away the rocks from one corner of the tank. i have nerver seen this befor. what the heck is he doing? is he geting rdy to breed or somthing? are they earth diggers?? by the way it is a 20 gal tall tank, if that info helps at all. temp home (real temp! Im worried about them breakin the glass!!) and if am going to get rid of them, but if i have a pair, i will go out and buy a big tank for them tomarrow.