I'm no gar expert or anything, but i don't think those are alligator gars! (which is good, for you and the rays!) Actually don't know what kind of gars those are?...still too small to say??
But be warned, if those happen to be 'Crocodile' gars... (alligator x shortnose hybrid). Even as juveniles, they will show their 'gator' side/half... and be quite aggressive with their tankmates!! From my own experience with them anyways. But you should be fine for now!!
GL w/ the mix!
But be warned, if those happen to be 'Crocodile' gars... (alligator x shortnose hybrid). Even as juveniles, they will show their 'gator' side/half... and be quite aggressive with their tankmates!! From my own experience with them anyways. But you should be fine for now!!