KNH;4075379; said:Jeff,
I'm relatively new to rays but they do need a lot of space. In general the male should be younger (smaller) than the female to prevent him from injuring her too much. I doubt that she is mature at 10", that isn't very large for a female marble. Sand may help as they love to dig constantly and it may help keep them occupied.
I thought you sold these?
There pending sale. The male is smaller.. And these ray's are around three years old. So i'm thinking there mature. jmo (Male is 100%)
Honestly i dont care if they breed or not. Would be cool to see. But not why i have them.
I'm moving soon so i'm not wanting to do sand till after. I may just split the tank.