When I first really got into fish keeping I got a Datnoid. It was in a tank with a SA redtail catfish, rookie mistake. I traded the Datnoid in and kept the SA redtail catfish. Wish I kept the Datnoid. Later I found out how big the SA RTC got. Once I found out, knew I couldn't keep it, traded the SA RTC in. My point is I wish I kept the Datnoid because I haven't seen any at the lfs since then, about 5 years maybe. I have seen some online and may get one, when ever I set up my 75 gal.