T1KARMANN;4811543; said:What size tank is the RTC in now ?
Anything smaller than are 350 gal and you better start building now
X2.
i don't know about the combo though. i had an RTC for a long time, she didn't ever eat any of her tankmates. but she was a terrible bully and the other fish that lived with her had to fight to get food. and if they got a piece of food she had her sites on she would chase them like she was gonna eat them.
from what i understand about rays sometimes it's tough to get them to eat. and if you've got a fish that's gonna bully them out of their food in the tank with them that could be a bad thing..