Alright now, I haven't given up on a stingray yet, and this is a nice one. Where the crap I get hold of wanna these, and from who? 9 inches max (fishbase http://www.fishbase.org/summary/Potamotrygon-schuhmacheri.html ). I'll hold it in my 48 x 18 x 16 (59 gallons sold as 55). Further to explain later. GTG.