nice pick up...i got my RTCxTSN when it was 3 inches hes now 11 inches and my TSN when it was 3 inches its now 9 inches have have them for a few months...i also have a little RTC thats 4 inches it was tiny like 1.5 -2 inches when i got it about 2 months ago...they are great fish...mine were shy at first but come feeding time they are very active...never had any problem getting mine to eat...i usually feed them massivore pellets, blood worms and ghost shrimp...i just alternate which they get fed every few days.